Microsoft Team rule error: 'unexpected token s in json at position 0'

Problem

When attempting to connect a rule to Microsoft Teams, you get the following error message is received in the Rule:

"EXECUTING ERROR This Rule is failing to execute correctly. Please review the error message below to fix the settings or remove the Rule.

Last Execution: [date] Message: Max re-tries reached. fetcherror: invalid json response body at [URL] reason: unexpected token s in json at position 0

If you need assistance please Submit a Support Request"

Solution

1. Make sure the Microsoft Teams app is completely installed.
   
   
2. Make sure the rule's action is set to Microsoft Teams, not Send Web Request to.