Getting Channel not found Exception (error code = 400201)

@Development_Account Oh, I think I finally understood the question. Unfortunately, we don’t save exception logs automatically. So if you didn’t add code to save the logs, there’s no way to track it. If you want to do it, you should save an exception to somewhere like Crashlytics.
FYI, If you get the exception in Handler’s callback, it’s not a crash and just SDK is telling users what error occurred.