How do I configure voucher numbering in BUSY?

Certainly! Here's a step-by-step guide on how to configure the voucher number from the voucher series configuration window in BUSY, allowing you to set voucher numbers automatically or manually and display them on invoices:
Step 1 : In the configuration menu look for an option related to voucher series Configuration. 
Step 2 ; In the voucher series configuration window, you will typically find a list of existing voucher series or the option to create a new one. If you have an existing series you want to configure, select it. Otherwise, create a new series by clicking on the "New" or "Add" button.
Step 3 : Within the selected voucher series or during the creation of a new one, there should be an option to choose between automatic or manual voucher numbering. Select the appropriate option based on your preference:
Automatic: If you want BUSY to generate voucher numbers automatically for each invoice, select this option. You may need to specify the starting number and any formatting preferences.
Manual: If you prefer to enter voucher numbers manually for each invoice, choose this option. In this case, you'll need to enter the voucher number each time you create an invoice.
Step 4 ; After selecting the voucher numbering method, be sure to save your configuration changes. Look for a "Save" or "Apply" button in the configuration window, and click it to save your settings
Step 5 : Depending on the voucher numbering method you selected (automatic or manual), you will now see the voucher number displayed on your invoices. If you chose automatic numbering, BUSY will generate and display the voucher number automatically. If you selected manual numbering, you'll need to enter the voucher number when creating or editing the invoice.