gpay

[woloszyn_matches]

How to add gpay to avalibele payment metods for customers?

[entegris]

You do it in auction description.

Ebay just switched to EMP (Ebay Management Payments).

eBay Managed Payments: The Devil Is in the Execution - EcommerceBytes

You can choose  payment methods provided to you during auction creation. Gpay is not there so put info i your auction description.