Paytabs provides you with a collection of API endpoints which used to process all payments, regardless of if they are through either your own payment pages, the managed payment pages, or if you are using the hosted payment pages.
This article is dedicated to the clarification of the Signature (signature) parameter. Signature (signature) is the parameter that can be used to validate the response, making sure it's coming from PayTabs side,
To understand the validation workflow steps check How to verify the response received from PayTabs? (Signture Verification) solution article.
|The Parameter Tag/Name||signature|
it could return as null if the returned status code is E (Error)