## Zoho Inventory Documentation Index Access the complete documentation index at: https://www.zoho.com/sa/inventory/llms.txt Use this file to discover all available documentation pages before proceeding. [Back](./) # How do I turn off/on auto generation of invoice numbers? * Open the New Invoice page. * Go to the field called **Invoice Number**. * Click the gear icon next to this field. * Choose the option **‘I will add them manually’** and click **Save** to apply your preferences. * Henceforth, you’ll be able to enter your own invoice number. Otherwise, you can directly edit the auto-generated invoice number if it’s a one time action. ![invoice number generation](/inventory/help/images/sales-orders/invoice-number-generation.png)