Time for action – setting the starting invoice number
We want the next invoice to start with the number 2501. We are going to directly edit the file where GnuCash saves all the accounts data in order to achieve this objective:
From the menu select Edit | Preferences | General.
In the Files pane, you will see the Compress files checkbox. Uncheck it as shown in the following screenshot:
Exit GnuCash using the File | Quit menu.
Most important step: Make a backup of your accounts file.
Use a plain text editor such as Notepad and open the GnuCash accounts file.
Note
Word processing programs such as OpenOffice Writer or MS Word are not suitable for this work. They store formatting data, in addition to the text. This messes up the GnuCash data file.
Search for the text gncInvoice. You should find it near the top of the file. You will see the corresponding value in the very next line. Change the number to 2500 as shown in the following screenshot:
Save and close the text editor.
Start GnuCash again and confirm...
