Suraj

Hi All, Can anyone help me for developing Payment Gateway Module using WHMCS. I have developed the same & transactions are happening correctly. But problem is facing with the Callback File. Invoice status of the transaction are not updating as PAID even though transactions are successful. Also not redirecting to success or Failure page proprely. Please help me out to resolve the same. I can share the code that I'm using gor Gateway as well as Callback file.