POS 3.0 upgrade POS 5.0 Below is the Guideline https://wiki.autocountsoft.com/wiki/Pos3/5/FNB:_When_perform_synchronization,_system_will_show_error_message_%22Column_%27Modifier%27_not_belongs_to_posdtl%22%3F https://wiki.autocountsoft.com/wiki/Pos3/Pos5/FNB:_How_to_Migrate_POS_3_Transactions_to_POS_5/F%26B_Database%3F