Is it possible to return an item on account where this item was not or not fully paid for during the purchase?

By default, it is not possible in RetailVista POS to return products and charge them to an account. The reason for this is that, at that moment, there is a possibility to pay out the negative amount in contacts (or via return EFT payment) to a customer. RetailVista POS first checks if the initial invoice for the delivered products has been paid. If that is not the case, RetailVista POS prevents that debtor from receiving money back for returned products that have not even been paid for. 

From a fraud perspective, this is desired functionality, but not every entrepreneur finds this safeguard important. From RetailVista POS 22.1.8068 and higher, it is possible to bypass this behavior through an advanced setting. From that moment on, no longer a check is done whether the invoice for the originally delivered products has been paid. The setting that needs to be specified is: CheckFullyPaid=0. It works from RetailVista POS version 22.1.8068 and higher.