You can get the following error message if AIT does not find a record in the AIT Company Setup table for the company you’ve just logged into:
The company has not been configured for Advanced Intercompany Transactions. You must run the mc2 Setup Wizard before you can proceed.
This is caused by a missing record in the AIT Company Setup table for the company you are logged into. This option most often happens when you add a new company database to your system. If you continue to get this message after running the AIT Setup Wizard, the Setup Wizard did not think you needed to choose the Build AIT Tables option. If you already have AIT setup in most of your companies, the Wizard will not mark this option. You can re-run the Setup Wizard marking only this option (but this requires that all other users exit Dynamics GP) or you can run check links on the AIT Company Setup table.