error 27 - Error 27 - vads_url_cancel

In PRODUCTION mode, if your buyer gets an error message such as:

An error occurred during the payment request, please make sure that the posted parameters match the ones specified in the documentation.

It becomes impossible to make the payment and the transaction is definitively lost.

You will receive an e-mail notification containing the form that the gateway was unable to process and the value of the invalid field.

We invite you to check the following reason(s) to resolve the issue:

The value of the field does not respect the URL format.
The vads_url_cancel field is used to transmit the URL to which the buyer will be redirected upon clicking on Cancel and return to shop before proceeding to the payment. It must consist of alphanumeric and special characters (except “<” and “>”) with a variable length up to 1024 characters (ans..1024). Make sure the field respects the format of a URL. Verify the used protocol (http:// or https:// ). Make sure the domain name is renamed with a correct extension (e.g.: .com / .net / etc.)

The value of the field does not respect the URL format.

The vads_url_cancel field is used to transmit the URL to which the buyer will be redirected upon clicking on Cancel and return to shop before proceeding to the payment. It must consist of alphanumeric and special characters (except “<” and “>”) with a variable length up to 1024 characters (ans..1024).

Make sure the field respects the format of a URL.

Verify the used protocol (http:// or https:// ).
Make sure the domain name is renamed with a correct extension (e.g.: .com / .net / etc.)

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error 27 - Error 27 - vads_url_cancel