Hi, 

I'm trying to invoice purchases to a customer.  

I can make the purchase, receive the items and by setting the Analytics account the purchase appears on my sales order.

I then invoice the customer and the purchases are invoiced.

But....when I look back at the sales order, the purchases are duplicated and I can invoice them again, and again, and again.  They never get cleared or set as paid or whatever is supposed to happen.

What am I missing?