I have a weird problem with a small amount of my orders where there are 2 invoices being created for the same order.
There seems to be no correlation between the orders this is happening to. Different payment systems etc.
First of all, how should I resolve this in the admin section? Should I just create a credit memo for the order so 1 invoice is begin cancelled? I think this would mess up the stock count etc?
Second, any idea what might be causing this? Might I have configured the preferences wrong somewhere?
Extra information: I am using Magento 1.7 and am using the MultiSafepay - Gateways - 2.0.2 module. The option to automatically generate an invoice after payment has been ACTIVATED.