Wopi Integration Co-authoring not working

[gobi-the-coder]

We are integrating office online using WOPI protocol and have implemented all required WOPI API File Operations for edit - locks , update operations ,userInfo operations as per the documentations - https://docs.microsoft.com/en-us/microsoft-365/cloud-storage-partner-program/rest/
Also we are following all co-auth guideline as per the documentations - https://docs.microsoft.com/en-us/microsoft-365/cloud-storage-partner-program/online/scenarios/coauth.
We also done the all the validations tests for locks and validations are successful
But still co-authoring is not working. When the second users tried to open the document for edit, we are getting reconnect messages repeatedly and its opened in view-only mode. are we missing anything?

[RobRol]

Howdy @gobi-the-coder,

Unfortunately, we cannot offer technical support for a WOPI implementation on this site. Please use the CSPP Yammer Group for that. It would also help if you provided the following headers to help with debugging:

• X-WOPI-CorrelationId
• X-Request-ID
• X-WOPI-SessionId

To kick off your investigation, I'll offer this piece of advice. Typically, those types of errors occur when either the Lock request or the UnlockAndRelock request aren't implemented correctly. Especially around their error cases. Please double check your response headers and status codes.

Best,
Rob Rolnick