Hi. I am new to Dynamics SL so please bare with me. We using Dynamics to create invoices for the services we provide our customers. The customer gives us with a PO number to invoice against, but occasionally they will need to provide us with an additional PO number for the same project. We then update the PO number in the on the Project Maintenance screen. The problem is after we update the PO number all past invoices created for this project in the system show the new PO number and don't associate with the old PO number when queried with reports. This seems odd to me. What am I doing wrong? Thanks in advance for any help.
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