Invalid Credentials Google Store

Hello,

I see this is a very common problem. I have waited 4 days but I still get this error. I think I have created the service and pasted the JSON file correctly to RevenueCat.

My question is if there is any way to check that the credentials are correct without having to make a transaction at source code level. How could I check if the credentials are working let’s say in an external way?

If I re-create the keys and set a new JSON file, will I need to way again between 24-48 hours? Or this only happens when the service account is created?

I would like to continue with the development but currently I am stuck since I cannot test some notifications due to the transactions being rolled back because of the credentials issue.

Thanks.