KB06-001

Deductions that are fixed amount and transaction required can be entered as a negative deduction amount using existing Microsoft Dynamics GP core functionality. Entering negative deductions of other types (“special negative deductions”) relies upon Negative Deductions Enhancement to process a conversion. As such, the Convert Negative Deduction checkbox is checked by default. See below:

NDE-KB-FAQ

However, the system does support turning off the conversion process if you wish to process a “special negative deduction” without benefit of a conversion. ***Please note that this may generate unexpected results as the core Microsoft Dynamics GP environment does not support this natively. It is advisable to consult all build and calculate reports before attempting this in a live environment.