This process is mostly done if you have made a mistake on the Invoice, and want to correct the original. Once you cancel an invoice, you cannot easily change the customer.
- Have the invoice number handy that you wish to cancel. .
- Open A/R Invoice Entry
- Start a group
- Actions -> Create Cancellation Invoice
- The screen will ask for a legal number. If you do a search, and do not find a legal number matching the invoice number, change the search to Invoice Number, and you should then be able to find the correct invoice.
- Print the Edit List
- Post the cancellation. This will reverse the original GL transactions, and return the shipment to a state where it can be modified.
If you also need to go all the way back to change the Sales Order, you will need to Un-Ship the order
You would then open the sales order, make the changes, then re-ship and invoice hte order