1. Integrate Orders API

Orders help in binding multiple payment attempts against a single order. This helps to prevent multiple payments. Integrate with Orders API on your server-side and pass the order_id to Checkout.

2. Verify Signature to Avoid Data Tampering

This is a mandatory step that allows you to confirm the authenticity of the details returned to the Checkout form for successful payments.

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3. Check Payment/Order Status before Providing Services

Check the payment/order status, that is, if the payment's status is captured and the order's status is paid before providing the services to the customers.

You can determine payment and order status using:

• Fetch All Payments for an Order API

• Fetch Status of a Payment using Payment ID API

• Fetch Status of an Order using Order ID API

4. Implement Webhooks

Implement Webhooks or the query API to avoid any cases of callback failure (drop-offs can be due to connectivity or network failure) and to verify the payment details using an S2S call. Following are some of the Webhook events that you should enable:

• payment.captured
• payment.failed
• order.paid

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5. Implement Callback URL

Implement callback_url if your customer's make online payments on browsers such as Instagram, Facebook Messenger, Opera, UC browsers and so on. These browsers do not support i-frame.

6. Implement VPA Saving and Validation Features

Follow these best practices if you accept UPI collect payments from customers:

1. Validate the VPA before initiating the payment request. Know more about

   VPA Validation

   .
2. Add a custom UPI Collect expiry based on the business requirement to provide enough time for the customer to complete the payment.
3. Use the

   Saved VPA

   feature provided by Razorpay to provide a better customer experience and avoid payment failures.