Craig Russell thanks for the reply, let me go into a little more detal, I restored a database from an April 30th backup and named it a different name (GDB2020) , I did this from SSMS. I ran the script, (EXEC sp_change_users_login 'Update_One', 'sde', 'sde') now I;m trying to connect to it from ArcMap using the sde credentials and ArcMap is giving me error ...