We have a cash register connected with sambapos. We pass it a txr file withe the amount of the ticket and then we obtain a invoice from the cash register. We have a problem with mixed payment.
For example if a customer pay 100 euro (80 cash and 20 Credit card) we have to pass to the cash register only the amout of 80 euro. Using ticket toal we obtain invoice of 100 euro.
Using PAYMENT TOTAL the we obtain one ticket of 80 euro .. but the second one of the credit card is 100 euro and not 20 euro....
how can we obtain one ticket invoice for each transaction with the correct ammount???
