The No. field can be filled in three ways:
If only one number series for the type of document or card exists where the Default Nos. check box is selected and the Manual Nos. check box is not selected, then the field is automatically filled with the next number in the series, and the No. field will not be visible.
Note
If the number series does not function, for example because it has run out of numbers, then the No. field will be visible and you can manually enter a number or resolve the issues on the No. Series page.
If more than one number series for the type of document or card exist, and the Default Nos. check box is not selected for the number series that is currently assigned, then the No. field is visible, and you can look up to the No. Series page and select the number series you want to use. The next number in the series is then inserted in the No. field.
If you have not set up a number series for the type of document or card, or if the Manual Nos. field is selected for the number series, then the No. field is visible and you must enter any number manually. You can enter a maximum of 20 characters, both numbers and letters.