## 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.

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# Can I enter the serial numbers for an item in a purchase order?

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No, in Zoho Inventory you can enter the serial numbers only in **bills and invoices**. You can either create a new bill or convert an existing purchase order to a bill. At that time, the **Add serial numbers** option will become available under the _Quantity_ section for the items that are serial number tracked.

> **Note:** The item will be serial number tracked only if you check the _Track serial numbers_ checkbox at the time of creating the item.