Hey everyone, I'm having a bit of a struggle setting up the Microsoft File Share Graph Connector for M365 Copilot on a GCC High tenant. I've got the connector published and it's showing green in the portal, plus the GCA agent health check is passing and all endpoints are reachable. It even sees the files in my test folder, but when it comes to indexing, I get an "access is denied" error. I've confirmed that my user account has access to the files, and I've even tried setting the test files to "everyone" permissions. From what I read in the Microsoft setup guide, I only need to ensure that the appsettings.json has CloudInstanceUrl set to login.microsoftonline.us. However, I also found some references in the HostConfig to commercial endpoints, so I added the GCC High endpoints (gcs.office365.us, graph.microsoft.us, graph.microsoft.com, and login.microsoftonline.us) but still no luck. I'm really at a dead end here, so any advice would be super appreciated!
1 Answer
You might want to check your registry to see if there's anything in HKEY_LOCAL_MACHINESOFTWAREMicrosoftGraph Connector Agent that's still pointing to a .com endpoint instead of a .us one. Sometimes during installation, it can default to the commercial settings which can cause these kinds of issues.
I checked and I don't have that registry tree at all. It seems like something isn't installed correctly. When I run the Graph Connector agent, it opens a browser window that shows 'this page cannot be displayed.' The GcaHostService seems to be running fine but isn't logging anything. If I run it manually, the log starts moving. Do you think the HostApp needs the .US endpoints too?