Hi Riya, first press View details on that red banner. The message itself tells you nothing, but the details normally give you the real HTTP code and a correlation ID, and that is what shows if it's auth or the endpoint.
Then check the MCP side in BC, search MCP in Tell Me. Two things matter - the server has to be enabled on that environment, and the configuration your connector points to must still exist and still have API pages inside it. An empty or disabled config gives you exactly this, no tools. Find Records V3 working proves nothing here, it goes through the normal API endpoint, different path completely.
It's still preview so updates move things around. We had a config come back empty after an environment update.
Glad to help - follow up if anything is unclear.
► If this solved it, marking it verified helps others too.
Regards,
Grigorios Mavrogeorgis
Business Central Consultant & AL Developer
Work: Gmsoft Limited
Blog: insidebusinesscentral
LinkedIn: linkedin.com/in/gregorymavrogeorgis