After training, you then test the database to assure all features are working properly and verify that nothing is missing that was in your approved design. If you find anything that is not working according to design I'll correct those for no charge as part of the project. The Testing and Corrections Phase can go on as long as necessary until all is working according to design.
If for any reason I am not able to correct a field, column or add-on to bring it into compliance with your finalized design document then I will refund you the amount you paid for that field, column or add-on . This has only happened a few times since 1999.