Mention in the documentation and field description that the system allows absolute path to the service account credentials.json

FYI: you can use any paths there. You're basically setting a GOOGLE_APPLICATION_CREDENTIALS environment variable here. When developing I thought it would be easier for people to set a relative path, but if you want /app/anotherfolder/credentialswhatever.json or whatever else, it will work, too. Just check that the PHP server's user can access the file. If it can't be read then you'll get "Cron experienced a problem: Could not construct ApplicationDefaultCredentials" during cron runs.

I'm going to reword that description. Right now, it is misleading.

I updated the docs.

thanks! that's good to know!

Automatically closed - issue fixed for 2 weeks with no activity.