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POST
/
subscriptions
/
{subscription_id}
/
change-plan
/
preview
JavaScript
import DodoPayments from 'dodopayments';

const client = new DodoPayments({
  bearerToken: process.env['DODO_PAYMENTS_API_KEY'], // This is the default and can be omitted
});

const response = await client.subscriptions.previewChangePlan('subscription_id', {
  product_id: 'product_id',
  proration_billing_mode: 'prorated_immediately',
  quantity: 0,
});

console.log(response.immediate_charge);
{
  "immediate_charge": {
    "effective_at": "2023-11-07T05:31:56Z",
    "line_items": [
      {
        "currency": "AED",
        "id": "<string>",
        "product_id": "<string>",
        "proration_factor": 123,
        "quantity": 123,
        "tax_inclusive": true,
        "type": "subscription",
        "unit_price": 123,
        "description": "<string>",
        "name": "<string>",
        "tax": 123,
        "tax_rate": 123
      }
    ],
    "summary": {
      "currency": "AED",
      "customer_credits": 123,
      "settlement_amount": 123,
      "settlement_currency": "AED",
      "total_amount": 123,
      "settlement_tax": 123,
      "tax": 123
    }
  },
  "new_plan": {
    "addons": [
      {
        "addon_id": "<string>",
        "quantity": 123
      }
    ],
    "billing": {
      "country": "AF",
      "city": "<string>",
      "state": "<string>",
      "street": "<string>",
      "zipcode": "<string>"
    },
    "cancel_at_next_billing_date": true,
    "created_at": "2023-11-07T05:31:56Z",
    "credit_entitlement_cart": [
      {
        "credit_entitlement_id": "<string>",
        "credit_entitlement_name": "<string>",
        "credits_amount": "<string>",
        "overage_balance": "<string>",
        "overage_behavior": "forgive_at_reset",
        "overage_enabled": true,
        "product_id": "<string>",
        "remaining_balance": "<string>",
        "rollover_enabled": true,
        "unit": "<string>",
        "expires_after_days": 123,
        "low_balance_threshold_percent": 123,
        "max_rollover_count": 123,
        "overage_limit": "<string>",
        "rollover_percentage": 123,
        "rollover_timeframe_count": 123,
        "rollover_timeframe_interval": "Day"
      }
    ],
    "currency": "AED",
    "customer": {
      "customer_id": "<string>",
      "email": "<string>",
      "name": "<string>",
      "metadata": {},
      "phone_number": "<string>"
    },
    "metadata": {},
    "meter_credit_entitlement_cart": [
      {
        "credit_entitlement_id": "<string>",
        "meter_id": "<string>",
        "meter_name": "<string>",
        "meter_units_per_credit": "<string>",
        "product_id": "<string>"
      }
    ],
    "meters": [
      {
        "currency": "AED",
        "free_threshold": 123,
        "measurement_unit": "<string>",
        "meter_id": "<string>",
        "name": "<string>",
        "description": "<string>",
        "price_per_unit": "10.50"
      }
    ],
    "next_billing_date": "2023-11-07T05:31:56Z",
    "on_demand": true,
    "payment_frequency_count": 123,
    "payment_frequency_interval": "Day",
    "previous_billing_date": "2023-11-07T05:31:56Z",
    "product_id": "<string>",
    "quantity": 123,
    "recurring_pre_tax_amount": 123,
    "status": "pending",
    "subscription_id": "<string>",
    "subscription_period_count": 123,
    "subscription_period_interval": "Day",
    "tax_inclusive": true,
    "trial_period_days": 123,
    "cancelled_at": "2023-11-07T05:31:56Z",
    "custom_field_responses": [
      {
        "key": "<string>",
        "value": "<string>"
      }
    ],
    "discount_cycles_remaining": 123,
    "discount_id": "<string>",
    "expires_at": "2023-11-07T05:31:56Z",
    "payment_method_id": "<string>",
    "scheduled_change": {
      "addons": [
        {
          "addon_id": "<string>",
          "name": "<string>",
          "quantity": 123
        }
      ],
      "created_at": "2023-11-07T05:31:56Z",
      "effective_at": "2023-11-07T05:31:56Z",
      "id": "<string>",
      "product_id": "<string>",
      "quantity": 123,
      "product_description": "<string>",
      "product_name": "<string>"
    },
    "tax_id": "<string>"
  }
}
Usa questo endpoint per mostrare ai clienti esattamente quanto verranno addebitati quando effettuano l’upgrade o il downgrade del loro abbonamento, migliorando la trasparenza e riducendo le richieste di supporto.

Casi d’Uso

  • Conferma del checkout: Mostra l’addebito proporzionale prima che i clienti confermino un cambio di piano
  • Calcolatori dei prezzi: Crea calcolatori per upgrade/downgrade nella tua applicazione
  • Self-service clienti: Permetti ai clienti di esplorare le opzioni dei piani con prezzi accurati
  • Validazione degli sconti: Anteprima di come un codice sconto influisce sul prezzo del cambio di piano
You can include a discount_code in the preview request to see how the discount affects the immediate charge and new plan pricing before committing to the change.

Campi di risposta

La risposta di anteprima include:
CampoDescrizione
immediate_chargeL’addebito che verrebbe creato immediatamente, inclusi gli articoli e il riepilogo
new_planL’intero oggetto di sottoscrizione che mostra come apparirebbe dopo il cambio di piano
The immediate_charge.summary contains the total amount that would be charged. Use this to display pricing to your customers before they confirm the plan change.

Autorizzazioni

Authorization
string
header
obbligatorio

Bearer authentication header of the form Bearer <token>, where <token> is your auth token.

Parametri del percorso

subscription_id
string
obbligatorio

Subscription Id

Corpo

application/json
product_id
string
obbligatorio

Unique identifier of the product to subscribe to

proration_billing_mode
enum<string>
obbligatorio

Proration Billing Mode

Opzioni disponibili:
prorated_immediately,
full_immediately,
difference_immediately,
do_not_bill
quantity
integer<int32>
obbligatorio

Number of units to subscribe for. Must be at least 1.

Intervallo richiesto: x >= 0
addons
Attach Addon Request · object[] | null

Addons for the new plan. Note : Leaving this empty would remove any existing addons

discount_code
string | null

Optional discount code to apply to the new plan. If provided, validates and applies the discount to the plan change. If not provided and the subscription has an existing discount with preserve_on_plan_change=true, the existing discount will be preserved (if applicable to the new product).

effective_at
enum<string>

When to apply the plan change.

  • immediately (default): Apply the plan change right away
  • next_billing_date: Schedule the change for the next billing date
Opzioni disponibili:
immediately,
next_billing_date
metadata
object

Metadata for the payment. If not passed, the metadata of the subscription will be taken

on_payment_failure
null | enum<string>

Controls behavior when the plan change payment fails.

  • prevent_change: Keep subscription on current plan until payment succeeds
  • apply_change (default): Apply plan change immediately regardless of payment outcome

If not specified, uses the business-level default setting.

Opzioni disponibili:
prevent_change,
apply_change

Risposta

Preview of subscription plan change

immediate_charge
object
obbligatorio
new_plan
object
obbligatorio

Response struct representing subscription details

Last modified on April 1, 2026