during my pm order settlement i get this m,eassage in ko88 whats is the reason
in allocation structure i assign primary cost emnt of spares to the row of maint spares and by cots elemt to reciver category cost centre
but i get the mesassge plaese explain
During settlement, the system puts the sender debits into groups (assignments), which are settled using the same settlement cost element. The settlement assignment is made in the allocation structure, which is stored in the settlement rule for the sender (under settlement parameters).
Cost element 310152 cannot be assigned to a settlement cost assignment in allocation structure PM, and therefore it cannot be assigned to a settlement cost element.