Type of permitted characters - Numeric with check function or alphanumeric

Define the permitted type of characters for the custom field.

  1. Activate the check box Numeric to support numbers only.
  2. The check box Check field input for the check function of the customer number is displayed.
  3. Activate the check box Alpha Numeric to support numbers and characters.

Check function for customer number

When using the check function, define a minimum of 9 and a maximum of 10 digits in the entry field.
−  NOTE If you do not know the length of the customer number, define 10 digits.

Check digit logic of a customer number
Check digit logic of a customer number
  1. Tick the check box Check field input to activate the check function of the customer number.
  2. Activate the check box Digit calculation based on German Bundes Bank to check the customer number according to the stipulations of the German Central Bank.

Applied check function according to the stipulations of the German Central Bank.
(DEUTSCHE BUNDESBANK: Z 11-7, digit check calculation method to check account numbers for their correctness (as of: June 2018))

−  Digits 13: Modulus 10, Severity 2, 1, 2, 1, 2, 1

−  Digits 76: Modulus 11, Severity 2, 3, 4, 5 et seqq.

The entered customer number consists of:

−  Digits 1 to 3 = FilHB
−  The subsequent 6 to 7 digits are the customer number.

If the check function is used, ignore digits 1 to 3.