Hi :
I set the check level at the contract in posting area 1052 and also configured parallel processing object VTREF for the Mass activities 0095(Mass write-off). But still the grouping is not happening at the contract, instead, the grouping is happening at Business partner level. This is causing the creation of write-off documents at business partner level causing the account determination to happen at VTREF level, where the created write-off document comprises multiple cost center assignments.The other problem is the selection of VTREF is not available in the General tab of FP04M, where we are forced to input GPART even though the parallel processing object is VTREF.