Invoice Postings

Hi,

We are recharging expenses through to the customer in our current system.

I need to create a process in SAP B1 where the expenses hit a control account and are then recharged. Hence, the postings for the purchase would be;

Cr Supplier

Dr Wip

And then for the invoice;

Cr Wip

Dr Expenses

Dr Accounts Receivable

Cr Revenue

Is there a way I can modify the invoice postings to reflect the above? I know you could use an item code, but I don't want to manage stock. If I use a non inventory item code then I lose the COGS posting.

Thanks,

Mark