We have lots of different platforms at play with subs and we often have a hard time troubleshooting because we don't know which platform the error is coming from. I'd love if we could have 'Arc:' or "Braintree:" or whatever added to the beginning of errors so I knew where to start.
Thank you Arianna for the suggestion. I'll talk with the team on what we can do to add this information. Updating the error messages tends to be a huge effort since it is a breaking change for most client implementations. But we are always looking to make it easier to determine where an issue is coming.