Currently 'Allow on accounts payments in Accounts Payable ' flag is available in Finance Tab of User Profile. If this Flag is enabled then it allows user to give On Account Payment if not puts restriction to make document adjustment mandatory.
But in case, if one wants to put restriction on Document Adjustment in Accounts Receivables also then it can not be done. This user restriction is needed to maintain Proper bill wise outstanding.
Amit Dharmadhikari
