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Who should use this guideThis guide is intended for merchants who:
  • Use Payrails as a payment orchestrator
  • Use Payrails to offer Aplazo buy now, pay later in Mexico
  • Have an active Aplazo merchant account

Create a Aplazo integration in Payrails

  1. Log in to the Payrails portal.
  2. Go to Settings → Integrations.
  3. Select Add instance to create a new integration configuration.
  4. Select the workspaces where this integration should be available.
About workspacesWorkspaces determine where this integration is available. They let you isolate provider setups by region or business line, or share the same configuration across multiple workspaces.

Step 1: Choose the integration type

  • Select Payment.
  • Continue to the next step.

Step 2: Choose the provider

  • Select Aplazo.
  • Continue to the next step.
A screenshot showing Aplazo selected as the provider.

Step 3: Configure your Aplazo integration

What you’ll need from AplazoBefore you begin, make sure you have your Aplazo merchant ID and API key. Aplazo provides them when it sets up your account.

Integration instance name

An integration instance is a specific payment provider setup in Payrails. You can create multiple instances for different regions, currencies, or business needs. Choose a clear, consistent name, as it is used in routing.
In Payrails
  • Enter an Instance name for your integration, for example merchant_aplazo.
A screenshot showing the integration instance name field.

Account details

In Payrails A screenshot showing the Aplazo account details fields.

Credentials

In Payrails Payrails sends requests to the Aplazo test environment in test mode and to the live environment in live mode, so use the credentials for the matching environment. A screenshot showing the Aplazo credential fields.

Payment methods

In Payrails
  • Select Aplazo.
A screenshot showing the Aplazo payment method selection.

Webhooks or notifications

Payrails sends its notification URL to Aplazo with every payment, so you don’t need to set one up in the Aplazo dashboard. Payrails verifies each notification with your API key.

Request fields for Aplazo

Send these fields in the authorize request, in addition to the standard authorize fields. Required fields must be present for the payment to succeed. Payrails sends Optional fields to Aplazo when you include them. For more about meta fields, refer to Meta fields.

Enable the integration

In Payrails
  • Select Save account to enable the integration.
  • Confirm the integration shows as Enabled.
Your Aplazo integration is now ready to process payments.

Next steps

  1. Run a test Aplazo payment in the Aplazo test environment.
  2. Verify that:
    • Your customer is redirected to Aplazo and back to your site.
    • The payment status updates correctly in Payrails.
  3. Once verified in test mode, repeat the setup in live mode.
→ Continue to: Test a payment
Last modified on October 6, 2026