Post-conversion Procedures
Once you complete the conversion, you still have to exercise some controls to ensure a clean division for pre- and post-GTM reporting:
• Handling of Closed Transactions
Closed transactions that were not included in the conversion should never be reversed or deleted once you start using GTM.
• Effective Date for Tax Reports
Tax reports should be printed with a post-conversion tax date, to exclude transactions you did not bring into GTM.