KB – Write requests (excluding DELETE) must contain the Content-Type header declaration.
This is a knowledgebase item. I hope it helps you out someday. The issue When using the HTTP action in Power Automate or Logic Apps in combination with Graph API, you get the following error: Write requests (excluding DELETE) must contain the Content-Type header declaration. Despite having a header included, you still got prompted with this error message. Cause In my case, this happened when the API required a body that I did not provide. I used it to create…