The default voucher numbering continues sequentially as vouchers are entered, provided that the same voucher types are used from one financial year to the next.
If you want to start voucher numbering from, for example, one or some other number at the beginning of the financial year, new voucher types must be created in the Settings – Voucher Types view. New voucher types should be established with new identifiers. At the same time, it is advisable to name them as descriptively as possible, for example, by adding the financial year to the name of the voucher type.
NOTE! The identifier of the voucher type does not have to be a number; it can also contain letters. When entering transactions, the user must select the correct voucher type.
Read more about creating voucher types here.
One option is to correct the voucher number behind the old voucher type, but this requires that all vouchers from the previous financial year are recorded first before entering vouchers for the next financial year.