B2B 결제

const session = await client.checkoutSessions.create({
  product_cart: [{ product_id: 'pdt_abc', quantity: 1 }],
  customer: { email: 'buyer@acme.com' },
  tax_id: 'GB123456789',
  customer_business_name: 'Acme Corp Ltd',
  feature_flags: {
    allow_tax_id: true,
    allow_customer_editing_business_name: true // optional: let the customer edit it
  },
  return_url: 'https://yoursite.com/return'
});

const session = await client.checkoutSessions.create({
  product_cart: [{ product_id: 'pdt_abc', quantity: 1 }],
  customer: { email: 'buyer@acme.com' },
  billing_address: { country: 'IN' },
  feature_flags: {
    allow_tax_id: true,   // default; must be true
    require_tax_id: true
  },
  return_url: 'https://yoursite.com/return'
});