By default, the prefix of your invoice number is the name of your fiscal year, e.g. “2016/7”. The prefix can be altered by changing the name of the fiscal year, in this example “2016". You can do this under Settings > Invoices > Fiscal years. Click on the pencil which brings you to a pop-up where the name of the fiscal year can be edited to e.g. “xxx”. From now on, invoice will be displayed with your changed prefix.
Note: this is a fixed text. It is therefore not possible to put in the name of your client or the date.
Customer support service by UserEcho