I have a flow which a user can trigger in a SharePoint list (for a selected item). It worked for months but suddenly I get "Status: 403. Access denied. You do not have permission to perform this action or access this resource."
I am SharePoint admin and I am owner of the flow. A co-owner doesn't get the error. I recreated the flow from scratch and deleted my SharePoint connection from connections, but I still receive the same error. I even created the same flow for a different list and I get the same error again. I get the error for the action "Get Item" from SharePoint. It is for SharePoint Online.
Have you made some changes on the sharepoint permissions?
Have you recreate a new connection to sharepoint in flow connections?
In many cases, an error code of 403 appears in a flow fail because of an authentication error. If you have this type of error, you can usually fix an authentication error by updating the connection,please make sure you have update the connection.
You could refer to link below
If you have updated the connection and the issue still exists,I afraid that there is some permissions setted in the sharepoint forbid you to access the sharepoint.
Please take a try to contact with the sharepoint administrator to see if you have been access denied in sharepoint.
I recreated the connection, so I deleted the connection from Connections and created a new one. Made a new flow with that new connection but still getting the error "Access denied".
And I am the SharePoint admin of that site, it's me who created the site and I still have full control on that site collection. That's why I don't understand why I am getting that specific error.
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