in Z2 setting, I define assignment line 010, cost element group: ZCO_001, in ZCO_001 i include all cost element
in settlement cost element, I define receiver category: CTR, by cost element
I try to define receiver category: MAT, by cost element
I try to settle to Material, in my order, I already find order settlement rule: MAT, material 1200020 full, settlement parameter; allocation structure: Z2
but I hit below error using KO88 to settle my order to MAT
Account type M is not defined for document type SA
Message no. F5243
how to resolve?