I am trying to update an existing order by adding a charge to it after it's already been invoiced (ie status = processing but not complete). For example, Initial Order Total = $500 Updated Order Total = $600 pay rest of the $100 using a different invoice.
The issue with this is that when the initial order was paid by credit card and I try to pay for the extra charge using a credit card too - wanting to produce two invoices, the initial order gets canceled and a new order with a new invoice is created. I believe this is happening because the second payment is producing a full invoice instead of a partial one. It would be great if someone could help me out with this!
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