Client: Each invoice should be it's entity. It should only report it's own open amount. Any other open amounts remain on the other invoices.

Me: No problem. ::Sets invoices to only report own open amount::

PM: Hey, the invoices in UAT are not displaying the sum of all open bills.

Me: I know. The client wants each invoice to only report the open amount on that specific invoice.

PM: That can't be right, change it back before we give the client access to the UAT environment.

Me: No problem. ::reverts invoice changes::

Client: We are failing the invoices. The invoices should not be giving total open amounts for the account. Each invoice should only report the open amount for that invoice. We told the development about this...

PM: I see. I'll make sure he understands your request.

Me: ... ::reverts the revert::

PM: Hey, the invoices in UAT aren't giving a total of the open-

Me: OMFG. I just want this task closed!

Client: After the invoice work is done, we need to talk about past due amounts and how they are reported to customers.

PM: Sure thing. It is logical to give a total of a past due amount to the customer...

Me: ::Starts updating resume::