Greetings folks,
We have a Microsoft Power Automate flow setup to monitor an alerting mailbox we have that receives alerts from various security tools that we use. This flow will extract the subject of the e-mail (using the subject trigger), and the body of the mail (using the body trigger) and take the outputs composing a message (subject output) with the description being the body of the e-mail to the Alerts API for OpsGenie.
We randomly started getting HTTP 422 status code errors (after making no changes to the flow) suggesting the message cannot be empty, when we can confirm the message is not empty within the body of the API POST request being made.