Error 12xx Series - Credit Card Number Validation

1234	Card Number is null
1235	Card Number is not numeric
1236	Card Number is not a valid credit card number
1237	Invalid Card Number Length
1238	Card Number error
1239	Invalid Expiry Date
1240	Invalid Start Date
1241	Invalid Issue Number
1242	Card has expired
1243	Card not yet in valid date range
1244	Incorrect number of Issue digits
1245	Missing Issue number