Currently, I'm willing to use Google Pay for Passes in order to let users add an event ticket to their google pay app. However, reading the documentation, apparently, I also need a Merchant account on Google. I would like to know if there is any other way to test without having a Merchan yet.
My goal so far is to be able to create just an event ticket class.
I have tried so far using my service account and issuer id, but I'm always receiving and 400 error.
You can try the codelab: https://codelabs.developers.google.com/passes-loyaltyapi
The codelab will take you through the process of creating a temporary issuer account for development purposes.