Unable to run Echo Bot Google Messaging API. Doesn't reply to "card", "carousel", "chips" strings
I just started Google Messaging APIs 3-5 days ago and couldn't figure out what did I go wrong. I already sent/asked this issue to Google's Support page.
Project is under my generic google account. I created a Service Account under this project for info@ourdomain.com and added it as a Project > Editor role. Got this Json keys, uploaded them together with my python Echo Bot files.
Done registering my partner account as well (info@ourdomain.com) and got verified with the Project Number connected that's in my generic google account. I don't know if this is the right setup where my partner account and project ID are from different Google Accounts (info@ourdomain.com and generic@gmail.com, respectively).
Echo bot sample I used: https://github.com/google-business-communications/bm-python-echo-bot/tree/master/full_sample
Logs:
I'm very familiar with programming Google's services but was unaware of Business Messages until I saw your question (it's interesting, thanks).
There are a couple of references to "select the project that you registered for Business Messages".
Often Google enable non-GA|non-public APIs and other functionality (sometimes by injecting service accounts into the project's policy) by having users register Project IDs and Google accounts. I suspect that's what's happening here and the functionality is either blocked or not working entirely by your use of a different Project.
You may be able to gain more insight from the problem by checking logs. IIUC, an App Engine app is deploy and you should be able to gcloud app logs read --project=[[YOUR-PROJECT-ID]] (or gcloud app logs tail --project=[[YOUR-PROJECT-ID]])