Use the Add field button to add one or more fields to the format. The counter field is mandatory, otherwise the invoices are not numbered automatically.
Here are a few predefined formats:
1. | counter | (001) | Use it |
2. | year-counter | (07-001) | Use it |
3. | client code-counter | (CODE-01) | Use it |
4. | prefix date-counter | (P 012807-0001) | Use it |
The format requires a special syntax that is (hopefully) simple. Each field is surrounded by ${}. The suffix ?string("") indicates how a field looks.
For instance, if the counter field is used as ${counter?string("000")} it means that it is represented as a three digit value. If the date field is used as ${date?string("yyyy")} it means that only the year will be displayed.