## Documentation Index

Access the complete documentation index at:
https://www.zoho.com/us/books/kb/llms.txt

Use this file to discover all available documentation pages before proceeding.

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# How do I configure auto-generation of invoice numbers?

To configure auto-generation of invoice numbers:

*   Log in to your Zoho Books organization.
*   Go to **Sales** on the left sidebar and select **Invoices**.
*   Click **\+ New** at the top right corner of the page.
*   In the next page, click the **Gear** icon next to the **Invoice#** field.

![Auto-Generation-Numbers](/books/kb/images/invoices/invoice_number_generation.png)

*   Edit the prefix and the format of the next invoice number as preferred.
*   Click **Save**.

The edited prefix and next number will be updated for the invoice and will continue being auto-generated for future invoices.

**Note:** Auto-generation of invoice numbers cannot be disabled if you are converting accepted quotes to invoices automatically.