Pass Back mechanism allows passing specific buyer responses back to the publisher after the post. To pass Redirect URL and Buyer Raw Response parameters from exclusive campaigns, they must be configured in API Builder.
Redirect URL and Buyer Raw Response parameters should be mapped to specific parameter names of the Buyer. You can configure either Redirect URL or Buyer Raw Response as well as both parameters, depending on specific needs of the publisher.
Redirect URL is generally used by the publisher to redirect the consumer to the final step of the process, or may be used for any other internal purposes.
To configure pass back functionality for Redirect URL, go to Campaigns, find a desired campaign in the list, click its Action menu > API configuration -> Map Responses -> Redirect URL tab.
Enter the regular expression in Extra Regex Redirect URL Expression Post field, which extracts the part of the buyer response containing Redirect URL. To do this, use Regular Expressions FAQ above and follow instructions described in the API Builder Guide.
Extra Regex Redirect URL Response Post field is a handy tool for testing regular expressions. Paste the response to this field to check if the Redirect URL is highlighted. This means that it is successfully extracted by regular expression entered above.
Buyer Raw Response
Buyer Raw Response is used to pass the text response from buyer to the publisher as is, for example, the reason why the buyer has not bought the lead.
To configure pass back functionality for Buyer Raw Response, go to Campaigns, find a desired campaign in the list, click its Action menu > API configuration -> Map Responses -> Buyer Raw Response tab.
Similarly to described above, enter the regular expression in Extra Regex Buyer Raw Response Expression Post field, which extracts the Buyer Raw Response. Paste the response to Extra Buyer Raw Response Response Post field to check if the Buyer Raw Response is highlighted, which means it is successfully extracted by regular expression entered above.
As soon as Pass Back is configured, PX captures data from the buyer response and passes them in the Redirect URL and/or Buyer Raw Response fields back to the publisher requesting form.
Only when PassBack="True" is sent by the publisher, parameters received from the buyer can be successfully passed back to the publisher.