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Check-Digit Tests

Check‑digit tests determine whether a number (usually an identification number) entered in a panel field is a valid entry. A check‑digit is an extra digit added to the end of a number used for comparison with the remainder of the number after it is processed through an algorithm. Two different check‑digit tests are available under CA Ideal to determine if a panel entry is valid: Modulo 10 and Modulo 11.

CA Ideal does not generate check‑digits. You must create them as follows: Before a check‑digit test can be used on a number, you must first apply the algorithm to the number to generate the check‑digit. The check‑digit is then appended to the number and is tested during processing.