Problems with Mastercards
Credit Card Processing KitEvery time i put a mastercard into the computer it says invalid card but when i put in visa or amex it goes through fine anyone else having problems with mastercard or have any suggestions?
Every time i put a mastercard into the computer it says invalid card but when i put in visa or amex it goes through fine anyone else having problems with mastercard or have any suggestions?







Did you double check to make sure that Mastercard is selected as a receipt tendering/payments you accept?
Edit > Preferences > Company > Sales > Receipt Tendering -- Card Types