Now we are on 10.2.400 I have noticed that there new flags in Customisation Maintnenance. I can’t seem to set them myself, so I assume they are set by the BL.
Does anyone know the logic behind them.??
The field help isnt very helpful 
Wondering the same myself. We’re upgrading from 10.1.400 to 10.2.500 and I’m having issues with “Duplicate”. I’m working on fixing a broken customization, and I want to Save As (to help with version control), but then the new version gets flagged as a “Duplicate” and I can’t put it on the menu in Menu Maintenance.