Prevent MO Delete locks the Delete Button on Manufacturing Order Entry.
Navigation: Tools >> Setup >> Manufacturing >> MFG PowerPack Setup
Mark the box next to “TWK: Prevent MO Delete”.
Click DONE on the MFG PowerPack Setup window. This Tweak will be active immediately for the current user. Other users will need to close GP, then log-in again to activate it.
When this Tweak is enabled the Delete button on Manufacturing Order Entry will be locked, which removes the ability to delete a Manufacturing Order.