Variant Configuration worOrder Splitting with different sales order

Dears,

My customer is working with Variant Configuration, I have activated Business function LOG_PP_PROD_ORD_SPLIT in order to be able to do order splitting with MTO.

In our case we need to create the child order with different sales order (item) but while creating sales order (with Costing on the sales order level) it creates new production order. If we try to create split order, in this case this sales order have 2 production order which is not the case.

We tried to create new Item category which is assigned to requirement class that does not create production order (Costing check box must not be checked

But while trying to assign the newly created sales order to the split order we have the following error

Sales order has no CO object

Message No. CO323

Thanks in advance,

Keroles Abader