" The selected company is not configured as a company of the current Microsoft Dynamics GP system database. You must resolve the database configuration to log in to the company"

" The selected company is not configured as a company of the current Microsoft Dynamics GP system database. You must resolve the database configuration to log in to the company"

You receive the above error after restoring one database to another.

• To resolve the error you need to go to the SY01500 table of the DYNAMICS database and take note of the CMPANYID value for the database being restored to. 
• Next go to the SY00100 table of the company database where the restore was made to and update the 'CMPANYID" field with that value. 
• Also update the "DBNAME" with the relevant DYNAMICS database name if you are using a separate DYNAMICS database for this company.