Hi. I am using ArcGIS Pro, latest version, and I was trying to add the XY coordinates to a fire hydrant (point) attribute table using the 'Add XY Coordinates' GP tool. Even though I had removed any connections (except sde) to the geodatabase, I was still getting a table lock error running the GP tool in Pro. I have write privileges to the feature dataset. I finally pulled the hydrant layer into ArcMap, disconnected any new connections, ran the GP tool and I was able to add the XY coordinates to the att table. I don't know if this is the place in GeoNet to mention this, but I wanted to get it out there. Thank you. Regards, Jay