How can I change my invoice number?

What

A setting can be made to change an invoice number or the start or end of the invoice number.

Where

Admin: Store > Stores > Edit > Settings > Cash journal and cash balances.

Press the green pencil icon button "Edit".

Then go to the "Settings" tab > to the "Cash journal and cash balances" section > to the "Prefix for invoice number" or "Suffix for invoice number" setting.

Prefix for invoice number setting:

Here you can define - also with the help of placeholders - the beginning of your invoice number.

Allowed placeholders are:

%y% = two-digit year,

%Y% = year with four digits,

%m% = two-digit month,

%z% = day of the year.

Suffix setting for invoice number:

Here you can define the end of your invoice number.