In the Events - Open view, there is a functionality called Transaction Processing, which allows for re-numbering of accounting voucher entries retrospectively using the Voucher Numbering feature.
At least a date or a seasonal interval (month) must be provided as selection criteria. In addition, other selection criteria can be provided as needed, such as voucher number, voucher type, account, VAT code, and/or possible cost centers. The Show button displays the entries that meet the provided selection criteria in the Open view. This allows for verifying that the selection criteria are correct.
By clicking the Transaction Processing button again, the program remembers the previous selections and criteria. The Continue button starts the re-numbering of entries, where the order of numbering (by date or season) and the voucher type used in the numbering are selected. The next voucher number is taken from behind the selected voucher type (Settings - Voucher Types).