> ## Documentation Index
> Fetch the complete documentation index at: https://docs.dodopayments.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Checkout Sessions

> Create secure, hosted checkout experiences that handle the complete payment flow for both one-time purchases and subscriptions with full customization control.

<CardGroup cols={2}>
  <Card title="Quick Start Guide" icon="rocket" href="#creating-your-first-checkout-session">
    Get your first checkout session running in under 5 minutes
  </Card>

  <Card title="API Reference & Live Testing" icon="code" href="/api-reference/checkout-sessions/create">
    Explore the full API documentation and interactively test Checkout Session requests and responses.
  </Card>

  <Card title="Preview Checkout" icon="eye" href="/api-reference/checkout-sessions/preview">
    Calculate pricing, taxes, and totals before creating a session.
  </Card>
</CardGroup>

<Info>
  **Session Validity**: Checkout sessions are valid for 24 hours by default. If you pass `confirm=true` in your request, the session will only be valid for 15 minutes.
</Info>

## Prerequisites

<Steps>
  <Step title="Dodo Payments Account">
    You'll need an active Dodo Payments merchant account with API access.
  </Step>

  <Step title="API Credentials">
    Generate your API credentials from the Dodo Payments dashboard:
  </Step>

  <Step title="Products Setup">
    Create your products in the Dodo Payments dashboard before implementing checkout sessions.
  </Step>
</Steps>

## Creating Your First Checkout Session

<Tabs>
  <Tab title="Node.js SDK">
    ```javascript expandable theme={null}
    import DodoPayments from 'dodopayments';

    // Initialize the Dodo Payments client
    const client = new DodoPayments({
      bearerToken: process.env.DODO_PAYMENTS_API_KEY,
      environment: 'test_mode', // defaults to 'live_mode'
    });

    async function createCheckoutSession() {
      try {
        const session = await client.checkoutSessions.create({
          // Products to sell - use IDs from your Dodo Payments dashboard
          product_cart: [
            {
              product_id: 'prod_123', // Replace with your actual product ID
              quantity: 1
            }
          ],
          
          // Pre-fill customer information to reduce friction
          customer: {
            email: 'customer@example.com',
            name: 'John Doe',
            phone_number: '+1234567890'
          },
          
          // Billing address for tax calculation and compliance
          billing_address: {
            street: '123 Main St',
            city: 'San Francisco',
            state: 'CA',
            country: 'US', // Required: ISO 3166-1 alpha-2 country code
            zipcode: '94102'
          },
          
          // Where to redirect after successful payment
          return_url: 'https://yoursite.com/checkout/success',
          
          // Custom data for your internal tracking
          metadata: {
            order_id: 'order_123',
            source: 'web_app'
          }
        });

        // Redirect your customer to this URL to complete payment
        console.log('Checkout URL:', session.checkout_url);
        console.log('Session ID:', session.session_id);
        
        return session;
        
      } catch (error) {
        console.error('Failed to create checkout session:', error);
        throw error;
      }
    }

    // Example usage in an Express.js route
    app.post('/create-checkout', async (req, res) => {
      try {
        const session = await createCheckoutSession();
        res.json({ checkout_url: session.checkout_url });
      } catch (error) {
        res.status(500).json({ error: 'Failed to create checkout session' });
      }
    });
    ```
  </Tab>

  <Tab title="Python SDK">
    ```python expandable theme={null}
    import os
    from dodopayments import DodoPayments

    # Initialize the Dodo Payments client
    client = DodoPayments(
        bearer_token=os.environ.get("DODO_PAYMENTS_API_KEY"),  # This is the default and can be omitted
        environment="test_mode",  # defaults to "live_mode"
    )

    def create_checkout_session():
        """
        Create a checkout session for a single product with customer data pre-filled.
        Returns the session object containing checkout_url for customer redirection.
        """
        try:
            session = client.checkout_sessions.create(
                # Products to sell - use IDs from your Dodo Payments dashboard
                product_cart=[
                    {
                        "product_id": "prod_123",  # Replace with your actual product ID
                        "quantity": 1
                    }
                ],
                
                # Pre-fill customer information to reduce checkout friction
                customer={
                    "email": "customer@example.com",
                    "name": "John Doe",
                    "phone_number": "+1234567890"
                },
                
                # Billing address for tax calculation and compliance
                billing_address={
                    "street": "123 Main St",
                    "city": "San Francisco", 
                    "state": "CA",
                    "country": "US",  # Required: ISO 3166-1 alpha-2 country code
                    "zipcode": "94102"
                },
                
                # Where to redirect after successful payment
                return_url="https://yoursite.com/checkout/success",
                
                # Custom data for your internal tracking
                metadata={
                    "order_id": "order_123",
                    "source": "web_app"
                }
            )
            
            # Redirect your customer to this URL to complete payment
            print(f"Checkout URL: {session.checkout_url}")
            print(f"Session ID: {session.session_id}")
            
            return session
            
        except Exception as error:
            print(f"Failed to create checkout session: {error}")
            raise error

    # Example usage in a Flask route
    from flask import Flask, jsonify, request

    app = Flask(__name__)

    @app.route('/create-checkout', methods=['POST'])
    def create_checkout():
        try:
            session = create_checkout_session()
            return jsonify({"checkout_url": session.checkout_url})
        except Exception as error:
            return jsonify({"error": "Failed to create checkout session"}), 500
    ```
  </Tab>

  <Tab title="REST API">
    ```javascript expandable theme={null}
    // Direct API call using fetch - useful for any JavaScript environment
    async function createCheckoutSession() {
      try {
        const response = await fetch('https://test.dodopayments.com/checkouts', {
          method: 'POST',
          headers: {
            'Content-Type': 'application/json',
            'Authorization': `Bearer ${process.env.DODO_PAYMENTS_API_KEY}`
          },
          body: JSON.stringify({
            // Products to sell - use IDs from your Dodo Payments dashboard
            product_cart: [
              {
                product_id: 'prod_123', // Replace with your actual product ID
                quantity: 1
              }
            ],
            
            // Pre-fill customer information to reduce checkout friction
            customer: {
              email: 'customer@example.com',
              name: 'John Doe',
              phone_number: '+1234567890'
            },
            
            // Billing address for tax calculation and compliance
            billing_address: {
              street: '123 Main St',
              city: 'San Francisco',
              state: 'CA', 
              country: 'US', // Required: ISO 3166-1 alpha-2 country code
              zipcode: '94102'
            },
            
            // Where to redirect after successful payment
            return_url: 'https://yoursite.com/checkout/success',
            
            // Custom data for your internal tracking
            metadata: {
              order_id: 'order_123',
              source: 'web_app'
            }
          })
        });

        if (!response.ok) {
          throw new Error(`HTTP error! status: ${response.status}`);
        }

        const session = await response.json();
        
        // Redirect your customer to this URL to complete payment
        console.log('Checkout URL:', session.checkout_url);
        console.log('Session ID:', session.session_id);
        
        return session;
        
      } catch (error) {
        console.error('Failed to create checkout session:', error);
        throw error;
      }
    }

    // Example: Redirect user to checkout
    createCheckoutSession().then(session => {
      window.location.href = session.checkout_url;
    });
    ```
  </Tab>
</Tabs>

### API Response

All methods above return the same response structure:

```json theme={null}
{
  "session_id": "cks_Gi6KGJ2zFJo9rq9Ukifwa",
  "checkout_url": "https://test.checkout.dodopayments.com/session/cks_Gi6KGJ2zFJo9rq9Ukifwa"
}
```

<Steps>
  <Step title="Get the checkout URL">
    Extract the `checkout_url` from the API response.
  </Step>

  <Step title="Redirect your customer">
    Direct your customer to the checkout URL to complete their purchase.

    ```javascript theme={null}
    // Redirect immediately
    window.location.href = session.checkout_url;

    // Or open in new window
    window.open(session.checkout_url, '_blank');
    ```

    <Tip>
      **Alternative Integration Options**: Instead of redirecting, you can embed the checkout directly in your page using [Overlay Checkout](/developer-resources/overlay-checkout) (modal overlay) or [Inline Checkout](/developer-resources/inline-checkout) (fully embedded). Both options use the same checkout session URL.
    </Tip>
  </Step>

  <Step title="Handle the return">
    After payment, customers are redirected to your `return_url` with query parameters including payment/subscription ID, status, customer email, and any license keys. See the [`return_url` parameter docs](#request-body) for the full list.
  </Step>
</Steps>

## Request Body

<CardGroup cols={2}>
  <Card title="Required Fields" icon="asterisk">
    Essential fields needed for every checkout session
  </Card>

  <Card title="Optional Fields" icon="gear">
    Additional configuration to customize your checkout experience
  </Card>
</CardGroup>

### Required Fields

<ParamField body="product_cart" type="array" required>
  Array of products to include in the checkout session. Each product must have a valid `product_id` from your Dodo Payments dashboard.

  <Tip>
    **Mixed Checkout**: You can combine one-time payment products and subscription products in the same checkout session. This enables powerful use cases like setup fees with subscriptions, hardware bundles with SaaS, and more.
  </Tip>

  <Expandable title="Product Cart Item Properties">
    <ParamField body="product_id" type="string" required>
      The unique identifier of the product from your Dodo Payments dashboard.

      **Example:** `"prod_123abc456def"`
    </ParamField>

    <ParamField body="quantity" type="integer" required>
      Quantity of the product.

      **Example:** `1` for single item, `3` for multiple quantities
    </ParamField>

    <ParamField body="addons" type="array">
      Array of addons to attach to the product. Only valid if the product is a subscription.

      <Expandable title="Addon item properties">
        <ParamField body="addon_id" type="string" required />

        <ParamField body="quantity" type="integer" required />
      </Expandable>
    </ParamField>

    <ParamField body="amount" type="integer">
      Amount the customer pays if pay\_what\_you\_want is enabled. If disabled, this field will be ignored.

      **Format**: Represented in the lowest denomination of the currency (e.g., cents for USD). For example, to charge \$1.00, pass `100`.
    </ParamField>

    <ParamField body="credit_entitlements" type="array">
      Per-checkout-session overrides for credit entitlements already attached to this product. Use this to grant a different number of credits for this single session — e.g., a promotional bundle that grants 1,000 API credits instead of the product-default 500 — without creating a separate product.

      <Info>
        Each `credit_entitlement_id` must already be attached to the product. This field overrides only the `credits_amount` granted when this session is fulfilled; product-level credit entitlement settings (expiration, rollover, etc.) still apply.
      </Info>

      <Expandable title="Credit entitlement override properties">
        <ParamField body="credit_entitlement_id" type="string" required>
          ID of the credit entitlement to override. Must already be attached to the product.
        </ParamField>

        <ParamField body="credits_amount" type="string" required>
          Number of credits to grant for this checkout session, overriding the product-level `credits_amount`. Must be greater than zero.
        </ParamField>
      </Expandable>
    </ParamField>
  </Expandable>
</ParamField>

<Tip>
  **Find Your Product IDs**: You can find product IDs in your Dodo Payments dashboard under Products → View Details, or by using the [List Products API](/api-reference/products/get-products).
</Tip>

### Optional Fields

Configure these fields to customize the checkout experience and add business logic to your payment flow.

<AccordionGroup>
  <Accordion title="Customer Information">
    <ParamField body="customer" type="object">
      Customer information. You can either attach an existing customer using their ID or create a new customer record during checkout.

      <Tabs>
        <Tab title="Attach Existing Customer">
          Attach an existing customer to the checkout session using their ID.

          <Expandable title="Existing Customer Properties">
            <ParamField body="customer_id" type="string" required>
              The unique identifier of an existing customer. Use this to attach the checkout session to an existing customer instead of creating a new one.
            </ParamField>
          </Expandable>
        </Tab>

        <Tab title="New Customer">
          Create a new customer record during checkout.

          <Expandable title="New Customer Properties">
            <ParamField body="email" type="string" required>
              Customer's email address. Required when creating a new customer.
            </ParamField>

            <ParamField body="name" type="string">
              Customer's full name as it should appear on receipts and invoices.

              **Example**: `"John Doe"` or `"Jane Smith"`
            </ParamField>

            <ParamField body="phone_number" type="string">
              Customer's phone number in international format. Required for some payment methods and fraud prevention.

              **Format**: Include country code, e.g., `"+1234567890"` for US numbers
            </ParamField>
          </Expandable>
        </Tab>
      </Tabs>
    </ParamField>

    <ParamField body="billing_address" type="object">
      Billing address information for accurate tax calculation, fraud prevention, and regulatory compliance.

      <Info>
        When `confirm` is set to `true`, all billing address fields become required for successful session creation.
      </Info>

      <Expandable title="Billing address object properties">
        <ParamField body="street" type="string">
          Complete street address including house number, street name, and apartment/unit number if applicable.

          **Example**: `"123 Main St, Apt 4B"` or `"456 Oak Avenue"`
        </ParamField>

        <ParamField body="city" type="string">
          City or municipality name.

          **Example**: `"San Francisco"`, `"New York"`, `"London"`
        </ParamField>

        <ParamField body="state" type="string">
          State, province, or region name. Use full names or standard abbreviations.

          **Example**: `"California"` or `"CA"`, `"Ontario"` or `"ON"`
        </ParamField>

        <ParamField body="country" type="string" required>
          Two-letter ISO country code (ISO 3166-1 alpha-2). This field is always required when billing\_address is provided.

          **Examples**: `"US"` (United States), `"CA"` (Canada), `"GB"` (United Kingdom), `"DE"` (Germany)

          <Card title="Country Code Reference" icon="globe" href="/api-reference/misc/supported-countries">
            View complete list of supported countries and their ISO codes
          </Card>
        </ParamField>

        <ParamField body="zipcode" type="string">
          Postal code, ZIP code, or equivalent based on country requirements.

          **Examples**: `"94102"` (US), `"M5V 3A8"` (Canada), `"SW1A 1AA"` (UK)
        </ParamField>
      </Expandable>
    </ParamField>
  </Accordion>

  <Accordion title="Payment Configuration">
    <ParamField body="allowed_payment_method_types" type="array">
      Control which payment methods are available to customers during checkout. This helps optimize for specific markets or business requirements.

      **Available Options**: `credit`, `debit`, `upi_collect`, `apple_pay`, `google_pay`, `amazon_pay`, `klarna`, `affirm`, `afterpay_clearpay`, `cashapp`, `multibanco`, `bancontact_card`, `eps`, `ideal`, `przelewy24`, `paypal`, `sunbit`

      <Warning>
        **Critical**: Always include `credit` and `debit` as fallback options to prevent checkout failures when preferred payment methods are unavailable.
      </Warning>

      **Example**:

      ```json expandable theme={null}
      ["apple_pay", "google_pay", "credit", "debit"]
      ```
    </ParamField>

    <ParamField body="billing_currency" type="string">
      Override the default currency selection with a fixed billing currency. Uses ISO 4217 currency codes.

      **Supported Currencies**: `USD`, `EUR`, `GBP`, `CAD`, `AUD`, `INR`, and more

      **Example**: `"USD"` for US Dollars, `"EUR"` for Euros

      <Note>
        This field is only effective when adaptive pricing is enabled. If adaptive pricing is disabled, the product's default currency will be used.
      </Note>
    </ParamField>

    <ParamField body="show_saved_payment_methods" type="boolean" default="false">
      Display previously saved payment methods for returning customers, improving checkout speed and user experience.
    </ParamField>
  </Accordion>

  <Accordion title="Session Management">
    <ParamField body="return_url" type="string">
      URL to redirect customers after payment completion. Dodo Payments appends the following query parameters to your URL on redirect:

      | Parameter         | Type     | Condition                                                                         |
      | ----------------- | -------- | --------------------------------------------------------------------------------- |
      | `payment_id`      | `string` | Always present for one-time payments                                              |
      | `subscription_id` | `string` | Always present for subscription payments                                          |
      | `status`          | `string` | Always present                                                                    |
      | `license_key`     | `string` | Present if the product has license keys enabled. Comma-separated if multiple keys |
      | `email`           | `string` | Present if the customer has an email on record                                    |

      **Example redirect URLs:**

      ```text theme={null}
      # One-time payment with license key
      https://yoursite.com/return?payment_id=pay_xxx&status=succeeded&license_key=LK-001&email=customer%40example.com

      # Subscription payment with multiple license keys
      https://yoursite.com/return?subscription_id=sub_xxx&status=active&license_key=LK-001,LK-002&email=customer%40example.com

      # Payment without license keys
      https://yoursite.com/return?payment_id=pay_xxx&status=succeeded&email=customer%40example.com
      ```

      <Tip>
        Use the `license_key` and `email` query parameters to display license keys or send a confirmation immediately on your return page, without needing an extra API call.
      </Tip>
    </ParamField>

    <ParamField body="cancel_url" type="string">
      URL to redirect customers when they click the back button or cancel the checkout session. If not provided, the back button will not be displayed.

      <Tip>
        Set a `cancel_url` to give customers a clear way to return to your site without completing the purchase. This improves the checkout experience and reduces friction.
      </Tip>
    </ParamField>

    <ParamField body="confirm" type="boolean" default="false">
      If true, finalizes all session details immediately. API will throw an error if required data is missing.
    </ParamField>

    <ParamField body="discount_codes" type="array">
      Apply one or more stacked discount codes to the checkout session. Codes are applied **in array order** (the first code reduces the base price, the second reduces the already-discounted price, and so on), up to a maximum of **20** codes per session.

      ```typescript theme={null}
      discount_codes: ['WELCOME10', 'BLACKFRIDAY20']
      ```

      <Info>
        The singular `discount_code` field below is **deprecated** but still fully supported — existing integrations continue to work without changes. It cannot be combined with `discount_codes` in the same request. Migrate to `discount_codes` when convenient to take advantage of stacking.
      </Info>
    </ParamField>

    <ParamField body="discount_code" type="string" deprecated>
      **Deprecated** — prefer `discount_codes` for new integrations. This field still works for backward compatibility, but cannot be combined with `discount_codes` in the same request.
    </ParamField>

    <ParamField body="metadata" type="object">
      Custom key-value pairs to store additional information about the session.
    </ParamField>

    <ParamField body="force_3ds" type="boolean">
      Override merchant default 3DS behaviour for this session.
    </ParamField>

    <ParamField body="minimal_address" type="boolean" default="false">
      Enable minimal address collection mode. When enabled, the checkout only collects:

      * **Country**: Always required for tax determination
      * **ZIP/Postal code**: Only in regions where it's necessary for sales tax, VAT, or GST calculation

      This significantly reduces checkout friction by eliminating unnecessary form fields.

      <Tip>
        Enable minimal address for faster checkout completion. Full address collection remains available for businesses that require complete billing details.
      </Tip>
    </ParamField>
  </Accordion>

  <Accordion title="UI Customization & Features">
    <ParamField body="customization" type="object">
      Customize the appearance and behavior of the checkout interface.

      <Expandable title="Customization object properties">
        <ParamField body="theme" type="string" default="system">
          Theme for the checkout interface. Options: `light`, `dark`, or `system`.
        </ParamField>

        <ParamField body="show_order_details" type="boolean" default="true">
          Display order details section in the checkout interface.
        </ParamField>

        <ParamField body="show_on_demand_tag" type="boolean" default="true">
          Show the "on-demand" tag for applicable products.
        </ParamField>

        <ParamField body="force_language" type="string">
          Force the checkout interface to render in a specific language. By default, the checkout auto-detects the customer's browser language.

          **Supported language codes:**
          `ar` (Arabic), `ca` (Catalan), `de` (German), `en` (English), `es` (Spanish), `fr` (French), `he` (Hebrew), `id` (Indonesian), `it` (Italian), `ja` (Japanese), `ko` (Korean), `ms` (Malay), `nl` (Dutch), `pl` (Polish), `pt` (Portuguese), `ro` (Romanian), `ru` (Russian), `sv` (Swedish), `th` (Thai), `tr` (Turkish), `zh` (Chinese)

          **Example**: `"es"` for Spanish, `"ja"` for Japanese
        </ParamField>
      </Expandable>
    </ParamField>

    <ParamField body="feature_flags" type="object">
      Configure specific features and behaviors for the checkout session.

      <Expandable title="Feature flags object properties">
        <ParamField body="allow_currency_selection" type="boolean" default="true">
          Allow customers to select their preferred currency during checkout.
        </ParamField>

        <ParamField body="allow_discount_code" type="boolean" default="true">
          Show discount code input field in the checkout interface.
        </ParamField>

        <ParamField body="allow_editing_addons" type="boolean" default="false">
          Tillåt kunder att lägga till eller ta bort tillägg på en prenumerationsprodukt under kassan. Gäller endast prenumerationsprodukter.
        </ParamField>

        <ParamField body="allow_phone_number_collection" type="boolean" default="true">
          Samla in kundens telefonnummer under kassan.
        </ParamField>

        <ParamField body="allow_tax_id" type="boolean" default="true">
          Tillåt kunder att ange skatteidentifikationsnummer.
        </ParamField>

        <ParamField body="always_create_new_customer" type="boolean" default="false">
          Tvinga fram skapande av en ny kundpost istället för att uppdatera befintliga.
        </ParamField>

        <ParamField body="allow_customer_editing_email" type="boolean">
          Tillåt kunder att redigera sin e-postadress under kassan.
        </ParamField>

        <ParamField body="allow_customer_editing_name" type="boolean">
          Tillåt kunder att redigera sitt namn under kassan.
        </ParamField>

        <ParamField body="allow_customer_editing_street" type="boolean">
          Tillåt kunder att redigera gatuadressen under kassan.
        </ParamField>

        <ParamField body="allow_customer_editing_city" type="boolean">
          Tillåt kunder att redigera staden under kassan.
        </ParamField>

        <ParamField body="allow_customer_editing_state" type="boolean">
          Tillåt kunder att redigera staten under kassan.
        </ParamField>

        <ParamField body="allow_customer_editing_country" type="boolean">
          Tillåt kunder att redigera landet under kassan.
        </ParamField>

        <ParamField body="allow_customer_editing_zipcode" type="boolean">
          Tillåt kunder att redigera postnumret under kassan.
        </ParamField>

        <ParamField body="redirect_immediately" type="boolean" default="false">
          Hoppa över standardsidan för betalningsframgång och omdirigera kunder omedelbart till din `return_url` efter slutförd betalning.

          <Tip>
            Använd detta när du har en anpassad framgångssida som ger en bättre användarupplevelse, eller för mobilappar och inbäddade kassa-flöden.
          </Tip>
        </ParamField>
      </Expandable>
    </ParamField>
  </Accordion>

  <Accordion title="Custom Fields">
    <ParamField body="custom_fields" type="array">
      Samla in ytterligare information från kunder under kassan med anpassade formulärfält. Du kan definiera upp till 5 anpassade fält per kassasession. Kundsvar inkluderas i webhook-payloads och är tillgängliga via API:et.

      <Expandable title="Custom field object properties">
        <ParamField body="key" type="string" required>
          Unik identifierare för detta fält. Används som nyckel i webhook-payloads och API-svar.

          **Exempel**: `"company_name"`, `"referral_source"`, `"team_size"`
        </ParamField>

        <ParamField body="label" type="string" required>
          Displayetikett som visas för kunden på kassans formulär.

          **Exempel**: `"Company Name"`, `"How did you hear about us?"`, `"Team Size"`
        </ParamField>

        <ParamField body="field_type" type="string" required>
          Typ av fält som bestämmer regler för inmatningsvalidering.

          **Tillgängliga typer**:

          * `text` - Enkelradig textinmatning
          * `number` - Numerisk inmatning
          * `email` - E-postadress med validering
          * `url` - URL med validering
          * `date` - Datumväljare
          * `dropdown` - Välj från fördefinierade alternativ
          * `boolean` - Ja/Nej-omkopplare
        </ParamField>

        <ParamField body="required" type="boolean" default="false">
          Huruvida detta fält måste fyllas i innan kassan kan slutföras.
        </ParamField>

        <ParamField body="placeholder" type="string">
          Placholdertext som visas i inmatningsfältet.
        </ParamField>

        <ParamField body="options" type="array">
          Lista över alternativ för `dropdown` fälttyp. Krävs när `field_type` är `dropdown`, ignoreras för andra typer.

          **Exempel**: `["Google", "Twitter", "Friend referral", "Other"]`
        </ParamField>
      </Expandable>
    </ParamField>

    <Info>
      Kundsvar på anpassade fält inkluderas i:

      * **Webhooks**: `payment.succeeded`, `subscription.active`, och andra relevanta händelse-payloads innehåller `custom_field_responses` fältet
      * **API-svar**: Betalnings- och prenumerationsobjekt inkluderar `custom_field_responses`
    </Info>
  </Accordion>

  <Accordion title="Subscription Configuration">
    <ParamField body="subscription_data" type="object">
      Ytterligare konfiguration för kassasessioner som innehåller prenumerationsprodukter.

      <Expandable title="Subscription data object properties">
        <ParamField body="trial_period_days" type="integer">
          Antal dagar för provperioden innan första debiteringen. Måste vara mellan 0 och 10000 dagar.
        </ParamField>

        <ParamField body="on_demand" type="object">
          On-demand prenumerationskonfiguration för användningsbaserad eller mätardebitering.

          <Expandable title="On-demand object properties">
            <ParamField body="mandate_only" type="boolean" required>
              Om satt till true, utförs ingen debitering och endast betalningsmetodens detaljer godkänns för framtida användning.
            </ParamField>

            <ParamField body="product_price" type="integer">
              Produktpris för den initiala debiteringen till kunden. Om det inte specificeras används produktens lagrade pris.

              **Format**: Representeras i den lägsta valören av valutan (t.ex. cent för USD). Till exempel, för att debitera \$1.00, ange `100`.
            </ParamField>

            <ParamField body="product_currency" type="string">
              Valuta för produktpriset, valfritt. Om det inte anges standardiseras det till produktens valuta.
            </ParamField>

            <ParamField body="product_description" type="string">
              Valfri produktbeskrivningsöversikt för fakturering och radposter. Om det inte anges används produktens lagrade beskrivning.
            </ParamField>

            <ParamField body="adaptive_currency_fees_inclusive" type="boolean">
              Huruvida anpassade valutakurser ska inkluderas i produktpriset (true) eller läggas till (false). Ignoreras om adaptiv prissättning inte är aktiverad.
            </ParamField>
          </Expandable>
        </ParamField>
      </Expandable>
    </ParamField>
  </Accordion>
</AccordionGroup>

## Användnings Exempel

Här är 10 omfattande exempel som visar olika konfigurationer av kassasessioner för olika affärsscenarier:

### 1. Enkel Produktkassa

```javascript expandable theme={null}
const session = await client.checkoutSessions.create({
  product_cart: [
    {
      product_id: 'prod_ebook_guide',
      quantity: 1
    }
  ],
  customer: {
    email: 'customer@example.com',
    name: 'John Doe'
  },
  return_url: 'https://yoursite.com/success'
});
```

### 2. Flera Produkter i Varukorgen

```javascript expandable theme={null}
const session = await client.checkoutSessions.create({
  product_cart: [
    {
      product_id: 'prod_laptop',
      quantity: 1
    },
    {
      product_id: 'prod_mouse',
      quantity: 2
    },
    {
      product_id: 'prod_warranty',
      quantity: 1
    }
  ],
  customer: {
    email: 'customer@example.com',
    name: 'John Doe',
    phone_number: '+1234567890'
  },
  billing_address: {
    street: '123 Tech Street',
    city: 'San Francisco',
    state: 'CA',
    country: 'US',
    zipcode: '94102'
  },
  return_url: 'https://electronics-store.com/order-confirmation'
});
```

### 3. Prenumeration med Proveriod

```javascript expandable theme={null}
const session = await client.checkoutSessions.create({
  product_cart: [
    {
      product_id: 'prod_monthly_plan',
      quantity: 1
    }
  ],
  subscription_data: {
    trial_period_days: 14
  },
  customer: {
    email: 'user@startup.com',
    name: 'Jane Smith'
  },
  return_url: 'https://saas-app.com/onboarding',
  metadata: {
    plan_type: 'professional',
    referral_source: 'google_ads'
  }
});
```

### 4. Förkonfirmerad Kassa

<Note>
  När `confirm` är inställt på `true`, kommer kunden att tas direkt till kassasidan, och eventuella bekräftelsesteg förbikopplas.
</Note>

```javascript expandable theme={null}
const session = await client.checkoutSessions.create({
  product_cart: [
    {
      product_id: 'prod_premium_course',
      quantity: 1
    }
  ],
  customer: {
    email: 'student@university.edu',
    name: 'Alex Johnson',
    phone_number: '+1555123456'
  },
  billing_address: {
    street: '456 University Ave',
    city: 'Boston',
    state: 'MA',
    country: 'US',
    zipcode: '02134'
  },
  confirm: true,
  return_url: 'https://learning-platform.com/course-access',
  metadata: {
    course_category: 'programming',
    enrollment_date: '2024-01-15'
  }
});
```

### 5. Kassa med Valutaöverskrivning

<Note>
  `billing_currency` överskrivning träder i kraft endast när adaptiv valuta är aktiverad i dina kontoinställningar. Om adaptiv valuta är avaktiverad, kommer denna parameter inte att ha någon effekt.
</Note>

```javascript expandable theme={null}
const session = await client.checkoutSessions.create({
  product_cart: [
    {
      product_id: 'prod_consulting_service',
      quantity: 1
    }
  ],
  customer: {
    email: 'client@company.co.uk',
    name: 'Oliver Williams'
  },
  billing_address: {
    street: '789 Business Park',
    city: 'London',
    state: 'England',
    country: 'GB',
    zipcode: 'SW1A 1AA'
  },
  billing_currency: 'GBP',
  feature_flags: {
    allow_currency_selection: true,
    allow_tax_id: true
  },
  return_url: 'https://consulting-firm.com/service-confirmation'
});
```

### 6. Sparade Betalningsmetoder för Återkommande Kunder

```javascript expandable theme={null}
const session = await client.checkoutSessions.create({
  product_cart: [
    {
      product_id: 'prod_monthly_subscription',
      quantity: 1
    }
  ],
  customer: {
    email: 'returning.customer@example.com',
    name: 'Robert Johnson',
    phone_number: '+1555987654'
  },
  show_saved_payment_methods: true,
  feature_flags: {
    allow_phone_number_collection: true,
    always_create_new_customer: false
  },
  return_url: 'https://subscription-service.com/welcome-back',
  metadata: {
    customer_tier: 'premium',
    account_age: 'returning'
  }
});
```

### 7. B2B Kassa med Insamling av Skatte-ID

```javascript expandable theme={null}
const session = await client.checkoutSessions.create({
  product_cart: [
    {
      product_id: 'prod_enterprise_license',
      quantity: 5
    }
  ],
  customer: {
    email: 'procurement@enterprise.com',
    name: 'Sarah Davis',
    phone_number: '+1800555000'
  },
  billing_address: {
    street: '1000 Corporate Blvd',
    city: 'New York',
    state: 'NY',
    country: 'US',
    zipcode: '10001'
  },
  feature_flags: {
    allow_tax_id: true,
    allow_phone_number_collection: true,
    always_create_new_customer: false
  },
  return_url: 'https://enterprise-software.com/license-delivery',
  metadata: {
    customer_type: 'enterprise',
    contract_id: 'ENT-2024-001',
    sales_rep: 'john.sales@company.com'
  }
});
```

### 8. Mörkt Tema Kassa med Staplade Rabattkoder

```javascript expandable theme={null}
const session = await client.checkoutSessions.create({
  product_cart: [
    {
      product_id: 'prod_gaming_chair',
      quantity: 1
    }
  ],
  discount_codes: ['BLACKFRIDAY2024'],
  customization: {
    theme: 'dark',
    show_order_details: true,
    show_on_demand_tag: false
  },
  feature_flags: {
    allow_discount_code: true
  },
  customer: {
    email: 'gamer@example.com',
    name: 'Mike Chen'
  },
  return_url: 'https://gaming-store.com/order-complete'
});
```

### 9. Regionala Betalningsmetoder (UPI för Indien)

För detaljerad information om UPI-konfiguration och testning, se sidan <a href="/features/payment-methods/india">India Payment Methods</a>.

```javascript expandable theme={null}
const session = await client.checkoutSessions.create({
  product_cart: [
    {
      product_id: 'prod_online_course_hindi',
      quantity: 1
    }
  ],
  allowed_payment_method_types: [
    'upi_collect',
    'credit',
    'debit'
  ],
  customer: {
    email: 'student@example.in',
    name: 'Priya Sharma',
    phone_number: '+919876543210'
  },
  billing_address: {
    street: 'MG Road',
    city: 'Bangalore',
    state: 'Karnataka',
    country: 'IN',
    zipcode: '560001'
  },
  billing_currency: 'INR',
  return_url: 'https://education-platform.in/course-access',
  metadata: {
    region: 'south_india',
    language: 'hindi'
  }
});
```

### 10. BNPL (Buy Now Pay Later) Kassa

För detaljerad information om BNPL-konfiguration och testning, se sidan <a href="/features/payment-methods/bnpl">Buy Now Pay Later (BNPL)</a>.

```javascript expandable theme={null}
const session = await client.checkoutSessions.create({
  product_cart: [
    {
      product_id: 'prod_luxury_watch',
      quantity: 1
    }
  ],
  allowed_payment_method_types: [
    'klarna',
    'afterpay_clearpay',
    'credit',
    'debit'
  ],
  customer: {
    email: 'fashion.lover@example.com',
    name: 'Emma Thompson',
    phone_number: '+1234567890'
  },
  billing_address: {
    street: '555 Fashion Ave',
    city: 'Los Angeles',
    state: 'CA',
    country: 'US',
    zipcode: '90210'
  },
  feature_flags: {
    allow_phone_number_collection: true
  },
  return_url: 'https://luxury-store.com/purchase-confirmation',
  metadata: {
    product_category: 'luxury',
    price_range: 'high_value'
  }
});
```

### 11. Använda Befintliga Betalningsmetoder för Omedelbar Kassa

Använd en kunds sparade betalningsmetod för att skapa en kassasession som behandlas omedelbart, och hoppar över samlingen av betalningsmetoder:

```javascript expandable theme={null}
const session = await client.checkoutSessions.create({
  product_cart: [
    {
      product_id: 'prod_premium_plan',
      quantity: 1
    }
  ],
  customer: {
    customer_id: 'cus_123'  // Required when using payment_method_id
  },
  payment_method_id: 'pm_abc123',  // Use customer's saved payment method
  confirm: true,  // Required when using payment_method_id
  return_url: 'https://yourapp.com/success'
});
```

<Warning>
  När du använder `payment_method_id`, måste `confirm` ställas in på `true` och en befintlig `customer_id` måste tillhandahållas. Betalningsmetoden verifieras för behörighet med betalningens valuta.
</Warning>

<Info>
  Betalningsmetoden måste tillhöra kunden och vara kompatibel med betalningens valuta. Detta möjliggör ett-klicks köp för återkommande kunder.
</Info>

### 12. Kortlänkar för Renare Betalnings-URLer

Generera förkortade, delbara betalningslänkar med anpassade slugs:

```javascript expandable theme={null}
const session = await client.checkoutSessions.create({
  product_cart: [
    {
      product_id: 'prod_monthly_subscription',
      quantity: 1
    }
  ],
  short_link: true,  // Generate a shortened payment link
  return_url: 'https://yourapp.com/success',
  customer: {
    email: 'customer@example.com',
    name: 'John Doe'
  }
});

// The checkout_url will be a shortened, cleaner link
console.log(session.checkout_url);  // e.g., https://checkout.dodopayments.com/buy/abc123
```

<Tip>
  Kortlänkar är perfekta för SMS, e-post eller sociala medier. De är lättare att komma ihåg och skapar mer förtroende hos kunder jämfört med långa URLer.
</Tip>

### 13. Hoppa över Betalningsframgångssida med Omedelbar Omdirigering

Omdirigera kunder omedelbart efter betalningsslutförande, hoppa över standardsidan för betalningsframgång:

```javascript expandable theme={null}
const session = await client.checkoutSessions.create({
  product_cart: [
    {
      product_id: 'prod_digital_product',
      quantity: 1
    }
  ],
  feature_flags: {
    redirect_immediately: true  // Skip success page, redirect immediately
  },
  return_url: 'https://yourapp.com/success',
  customer: {
    email: 'customer@example.com',
    name: 'Jane Smith'
  }
});
```

<Tip>
  Använd `redirect_immediately: true` när du har en anpassad framgångssida som ger en bättre användarupplevelse än standardsidan för betalningsframgång. Detta är särskilt användbart för mobilappar och inbäddade kassaflöden.
</Tip>

<Note>
  När `redirect_immediately` är aktiverad, omdirigeras kunden till din `return_url` direkt efter betalningsslutförande, och hoppar över standardsidan för betalningsframgång helt.
</Note>

### 14. Tvinga språkval

Tvinga kassan att visa på ett specifikt språk och ignorera kundens webbläsares språkinställningar:

```javascript expandable theme={null}
const session = await client.checkoutSessions.create({
  product_cart: [
    {
      product_id: 'prod_subscription',
      quantity: 1
    }
  ],
  customization: {
    force_language: 'ja'  // Force Japanese language
  },
  customer: {
    email: 'customer@example.jp',
    name: 'Tanaka Yuki'
  },
  return_url: 'https://yourapp.com/success'
});
```

<Tip>
  Använd `force_language` när du känner till kundens föredragna språk (t.ex. från deras kontoinställningar) eller när du riktar dig mot specifika regionala marknader.
</Tip>

**Stödda språk:** Arabiska (`ar`), Katalanska (`ca`), Kinesiska (`zh`), Nederländska (`nl`), Engelska (`en`), Franska (`fr`), Tyska (`de`), Hebreiska (`he`), Indonesiska (`id`), Italienska (`it`), Japanska (`ja`), Koreanska (`ko`), Malayiska (`ms`), Polska (`pl`), Portugisiska (`pt`), Rumänska (`ro`), Ryska (`ru`), Spanska (`es`), Svenska (`sv`), Thailändska (`th`), Turkiska (`tr`)

### 15. Insamling av Anpassade Fält

Samla in ytterligare information från kunder under kassan med anpassade fält:

```javascript expandable theme={null}
const session = await client.checkoutSessions.create({
  product_cart: [
    {
      product_id: 'prod_saas_plan',
      quantity: 1
    }
  ],
  custom_fields: [
    {
      key: 'company_name',
      label: 'Company Name',
      field_type: 'text',
      required: true,
      placeholder: 'Acme Inc.'
    },
    {
      key: 'team_size',
      label: 'Team Size',
      field_type: 'dropdown',
      required: true,
      options: ['1-10', '11-50', '51-200', '201-500', '500+']
    },
    {
      key: 'referral_source',
      label: 'How did you hear about us?',
      field_type: 'dropdown',
      required: false,
      options: ['Google', 'Twitter', 'Friend referral', 'Blog post', 'Other']
    },
    {
      key: 'website',
      label: 'Company Website',
      field_type: 'url',
      required: false,
      placeholder: 'https://example.com'
    }
  ],
  customer: {
    email: 'buyer@company.com',
    name: 'Jane Doe'
  },
  return_url: 'https://yourapp.com/success'
});
```

<Info>
  Anpassade fält svar inkluderas automatiskt i webhook-payloads (`payment.succeeded`, `subscription.active`, etc.) och kan hämtas via API:et. Använd dem för att berika ditt CRM, utlösa onboarding-flöden eller anpassa kundupplevelsen.
</Info>

**Tillgängliga fälttyper:** `text`, `number`, `email`, `url`, `date`, `dropdown`, `boolean`

## Förhandsvisning av Kassasessioner

Innan du skapar en kassasession kan du förhandsgranska prisuppdelningen inklusive skatter, rabatter och summor. Detta är användbart för att visa kunderna korrekta priser innan de går vidare till kassan.

<Tabs>
  <Tab title="Node.js SDK">
    ```javascript theme={null}
    const preview = await client.checkoutSessions.preview({
      product_cart: [
        { product_id: 'prod_123', quantity: 1 }
      ],
      billing_address: {
        country: 'US',
        state: 'CA',
        zipcode: '94102'
      },
      discount_codes: ['SAVE20']
    });

    console.log('Subtotal:', preview.subtotal);
    console.log('Tax:', preview.tax);
    console.log('Discount:', preview.discount);
    console.log('Total:', preview.total);
    ```
  </Tab>

  <Tab title="Python SDK">
    ```python theme={null}
    preview = client.checkout_sessions.preview(
        product_cart=[
            {"product_id": "prod_123", "quantity": 1}
        ],
        billing_address={
            "country": "US",
            "state": "CA",
            "zipcode": "94102"
        },
        discount_codes=["SAVE20"]
    )

    print(f"Subtotal: {preview.subtotal}")
    print(f"Tax: {preview.tax}")
    print(f"Discount: {preview.discount}")
    print(f"Total: {preview.total}")
    ```
  </Tab>
</Tabs>

<Card title="Preview API Reference" icon="code" href="/api-reference/checkout-sessions/preview">
  Visa den fullständiga dokumentationen för förhandsvisningsendpunkt.
</Card>

## Flytta från Dynamiska Länkar till Kassasessioner

### Nyckelskillnader

Tidigare, när du skapade en betalningslänk med Dynamiska Länkar, krävdes det att du angav kundens kompletta faktureringsadress.

Med Kassasessioner är detta inte längre nödvändigt. Du kan helt enkelt skicka in den information du har, så tar vi hand om resten. Till exempel:

* Om du bara känner till kundens faktureringland, ange bara det.
* Kassaflödet kommer automatiskt att samla in de saknade detaljerna innan kunden flyttas till betalningssidan.
* Å andra sidan, om du redan har all nödvändig information och vill gå direkt till betalningssidan, kan du skicka hela datasetet och inkludera `confirm=true` i kroppens begäran.

### Migrationsprocess

Att flytta från Dynamiska Länkar till Kassasessioner är enkelt:

<Steps>
  <Step title="Update your integration">
    Uppdatera din integration för att använda den nya API- eller SDK-metoden.
  </Step>

  <Step title="Adjust request payload">
    Justera begärandens payload enligt Kassasessionernas format.
  </Step>

  <Step title="That's it!">
    Ja. Ingen ytterligare hantering eller speciella migrationssteg behövs från din sida.
  </Step>
</Steps>

## Relaterad API-Referens

<CardGroup cols={2}>
  <Card title="Create Checkout Session" icon="code" href="/api-reference/checkout-sessions/create">
    Komplett API-referens för att skapa kassasessioner med alla tillgängliga parametrar och alternativ
  </Card>

  <Card title="Preview Checkout Session" icon="eye" href="/api-reference/checkout-sessions/preview">
    API-referens för att förhandsgranska priser, skatter och summor innan du skapar en session
  </Card>
</CardGroup>