## Zoho Inventory Documentation Index

Access the complete documentation index at:
https://www.zoho.com/en-fr/inventory/llms.txt

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

[Back](./)

# Why can’t I autogenerate bill numbers in Zoho Inventory?

 ![](/inventory/images/ue-resources/llm-utility-menu/sparkle-ai.svg) Explore With AI ![](/inventory/images/ue-resources/llm-utility-menu/dd-arrow.svg) 

*   [Open in ChatGPT (opens in new tab)](https://chatgpt.com/?prompt=Analyze+the+content+of+https%3A%2F%2Fwww.zoho.com%2Fen-fr%2Finventory%2Fkb%2Fbill%2Fbill-number.html+and+understand+it+thoroughly+so+I+can+ask+questions+about+it.)
*   [Open in Claude (opens in new tab)](https://claude.ai/new?q=Analyze+the+content+of+https%3A%2F%2Fwww.zoho.com%2Fen-fr%2Finventory%2Fkb%2Fbill%2Fbill-number.html+and+understand+it+thoroughly+so+I+can+ask+questions+about+it.)
*    ![Copy for LLM](/inventory/images/ue-resources/llm-utility-menu/copy.svg) Copy for LLM
*    [![View as Markdown](/inventory/images/ue-resources/llm-utility-menu/md.svg) View as Markdown (opens in new tab)](/en-fr/inventory/kb/bill/bill-number.md)

A bills in Zoho Inventory is nothing but an invoice that your vendor sends to you for making purchases. Hence, the bill number will be provided by your vendor and cannot be generated by you.