I'm upgrading a very difficult client from GP2015 to GP 18.2. Right now, I'm just trying to get to GP 2015 R2. I've successfully upgraded DYNAMICS and the two companies. I can login to one of the companies without error. However, the other company is throwing the dreaded "a product installed on your computer is on a different version that the database version..."
The gp_loginerrors.log file confirms there is a discrepancy, however the GP_upgrade table shows a match for every product of both companies.
Does anyone know where this error message is looking? And how can one company be okay, and the other not?