@Brian Hood Thanks for posting your question in Microsoft Q&A, apologize for any inconvenience caused on this.
The error message states that you need to provide the Absolute URI (https://**/.com) instead of sanitized URI(\v2\
).
Also, as per the HTTP action documentation, it is clearly called out that your need to pass the HTTP/HTTPS endpoint URL to send/call any outbound request.
If you are trying to send a HTTP request to Azure Service, then then you need to use the resource ID as the URI parameter.
I would suggest you modify the URI in the HTTP action with absolute URI and let us know if you are still facing the issue.
Hope this helps, let me know if you have any further questions on this.