Anyone know how to totally block a credit card type? We don't take AMEX or Discover, however new clerks etc. have taken them off and on and pos will accept the transaction (but then it won't settle, get the 'technical error' on the EDC report) Is there a way to block those cards completely so that they won't tender at the point of sale?
Any help would be appreciated! Nicole
Create a separate tender type for each card that you do accept. Use the Validation Mask property to set the accepted card values...
Validation Mask Settings: Visa = 4* MC = 5* AMEX = 3* Discover= 6*
If a cashier tries to enter an Amex card in the Visa Tender Type, they will get a message saying "Invalid Card Number" because Amex starts with a "3", but the Visa Tender Type only allows cards that start with "4"...
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