Handle Responses

When

Unified Checkout

automatically processes a payment with

autoProcessing

is set to

true

or you have set

autoProcessing

to

false

and are using

checkout.Complete()

, you must handle both successful responses and various errors. After the payment is complete, the

completeResponse

field object contains information about the transaction outcome.

When a payment is processed successfully, you must parse the response to confirm the payment status, update their order records, and trigger any post-payment workflows. Post-payment workflows include sending confirmation emails or updating inventory. See JavaScript Example: Processing a Payment.

Your error handling should account for specific cases such as

COMPLETE_TRANSACTION_CANCELED

which is returned when the user cancels the transaction.

For PPRO-enabled online bank transfers, only cancellation errors are returned. For information about possible errors that can occur when calling the complete API see UnifiedCheckoutError in Handle Errors.