You can control how your document numbers are formatted (and if you need to start from a certain number) by using the Document Numbers section of the General Settings window. These numbers will then be assigned to sales orders, purchase orders etc. as soon as you save the order for the first time.
To change your formatting simply:
- Go to Main Menu > Settings > General Settings.
- Choose the Document Numbers icon on the left.
- Make your changes.
- Click Save & Close.
