I have been trying to enter someones cc info but i keep getting message saying seems to contain an invalid checksum, what does this mean, i have rechecked the number with the client, help please and thx
Credit card checksum error
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#1 Posted by Dean on 20 Aug, 2013 09:14 PM
Hi Nancy,
The checksum is a simple validation tool using the Luhn algorithm to determine the authenticity of a card. It's used to mostly detect human error during the exchange of cc numbers. Really all I can say is that if the validation is failing, either the number is incorrect or there was some kind of error inputing it.
Best,
Dean
Jess Pendley closed this discussion on 21 Nov, 2013 07:47 PM.