Hi sumitrathod_aquil, I’m experiencing the same issue at the moment in our project. Can you kindly share how you were able to fix it? Any advice or steps you took would be much appreciated. Thanks in advance!

The issue was with the one of the nodes(Server) were the applicaiton was deployed, when we tested with another node , it started working without any extra steps (only changes as mentioned in documentation merchant setup, IP whitelisting etc. were performed)