Hello, Durgesh,

We replied to you about adding payment services in Merchium in the following topic:

https://help.merchium.com/support/discussions/topics/11000000968

> Is there any option in Merchium to host customer developed modules like above payment modules?

> If ans of 1st question is no then how we'll host above modules and where? and how whole payment process will completed successfully please explain step by step.

Actually, no files are added (physically) to your Merchium store when you install an application. It communicates with the developer's server via API on the fly so you do not need to care about it.

> After developing above custom modules if Merchium version gets updated then what will happen and what needs to do?

You don't need to do anything, the application will work after update. If the API is updated, we always keep the previous version to provide backward compatibility.

Thank you.