PERIFACT main menu SETTINGS - EXTRAs, [Numbering] tab.
Invoice / quotation number from
For the tax authorities, the only important thing is that the numbers are consecutive. If you still want to give your clients the impression that invoices have already been written fill in a value here. Enter the minimum value for the count here.
At the end of the year, the invoice numbering jumps back to 1. Or else to the value listed here.
Leaving numbering in the new year
If this box is checked then this year's numbering will continue into the next year. So for example, if your last invoice was 238, then in January the first invoice will be 239.
Fill gaps in numbering automatically
If an invoice is deleted then potentially there will be a gap in the invoice numbering if there are subsequent invoices available. The setting will refill possible gaps.
Fill all invoices with this prefix
Suppose at some point you are no longer happy with the current invoice/quote prefix. Then you can press this button to modify all invoices of this year and thus all get one and the same prefix.
Have you added multiple companies in PERIFACT. Then you can also add a specific prefix for that company. Then go to SETTINGS - STANDARD and look at the company information there you will see an invoice number prefix.
Handy so!