Internal orders settle to COPA by cost element

Hi experts:

I would like to settle internal orders with an allocation structure defining the settlement account by cost element. That means that I would like to settle the order with the same account that we posted the primary cost.

Then, In the order, one posting for each primary account is posted but just a only COPA document is created. That document has only one primary account with the total amount. It isn't correct.

I could created so many original source or created so many secondary account as primary accounts but it isn't what we want. We don't understand the reason why the settlement by cost element doen't work in COPA like the rest of the cost objects (when I settle an order to a cost center by cost element I can see in cost center all primary cost elements that come from the order.

Thanks in advance for your help.

Best regards

  Jose