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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>"
  }
}
Use este endpoint para mostrar aos clientes exatamente o que será cobrado ao fazer upgrade ou downgrade da assinatura, melhorando a transparência e reduzindo solicitações de suporte.

Casos de Uso

  • Confirmação de checkout: Exiba a cobrança proporcional antes de os clientes confirmarem a mudança de plano
  • Calculadoras de preços: Construa calculadoras de upgrade/downgrade em sua aplicação
  • Autoatendimento do cliente: Permita que os clientes explorem opções de planos com preços precisos
  • Validação de desconto: Preveja como um código de desconto afeta o preço da mudança de plano
Você pode incluir um discount_code na solicitação de pré-visualização para ver como o desconto afeta a cobrança imediata e o novo preço do plano antes de confirmar a alteração.

Campos de Resposta

A resposta de pré-visualização inclui:
CampoDescrição
immediate_chargeA cobrança que seria criada imediatamente, incluindo itens de linha e resumo
new_planO objeto completo da assinatura mostrando como ficaria após a mudança de plano
O immediate_charge.summary contém o valor total que seria cobrado. Use isso para exibir os preços aos seus clientes antes de confirmarem a mudança de plano.

Autorizações

Authorization
string
header
obrigatório

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

Parâmetros de caminho

subscription_id
string
obrigatório

Subscription Id

Corpo

application/json
product_id
string
obrigatório

Unique identifier of the product to subscribe to

proration_billing_mode
enum<string>
obrigatório

Proration Billing Mode

Opções disponíveis:
prorated_immediately,
full_immediately,
difference_immediately,
do_not_bill
quantity
integer<int32>
obrigatório

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

Intervalo obrigatório: 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
Opções disponíveis:
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.

Opções disponíveis:
prevent_change,
apply_change

Resposta

Preview of subscription plan change

immediate_charge
object
obrigatório
new_plan
object
obrigatório

Response struct representing subscription details

Last modified on March 24, 2026