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When using the option of a customer's return to the shop, it is recommended to sent an additional request about the authorization result to IPS Assist server after receiving data about the paid order at URL_RETURN_OK (see details) in order to make sure the order payments have been performed. It is recommended as well to send an additional request about the authorization result to IPS Assist server after receiving data about the paid order at URL_RETURN and URL_RETURN_NO, because a customer is redirected to these addresses with different payment state, including the state "In process".

Tip

It is possible to pass any additional parameters in the authorization request.

To do this, you must pass a list of fields and their values in the same order as they were listed in the ListParameters parameter.

Example

Code Block
languagexml
ListParameters="Field1,Field2"
Field1="42"
Field2="room"

Additional parameters passed in this way can be used on the custom payment pages of the merchant. To do this, you need to add a tag with the name of the parameter to the template, for example, <%Field1%>.

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