> ## Documentation Index
> Fetch the complete documentation index at: https://docs.payhub.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Inventory Units Overview

> Track serialized stock available to assign to a line item

Inventory units are serialized devices held in stock. Provisioning a deployment order line item assigns its serial to one of these units, which is how a physical device becomes traceable to a merchant.

| Endpoint | Description |
| - | - |
| [List inventory units](/api-reference/deployments/list-deployment-inventory-units) | Retrieve a paginated list of serialized inventory units |
| [Create inventory unit](/api-reference/deployments/create-deployment-inventory-unit) | Add a serialized unit to inventory |
| [Get inventory unit](/api-reference/deployments/get-deployment-inventory-unit) | Retrieve a single inventory unit |
| [Update inventory unit](/api-reference/deployments/update-deployment-inventory-unit) | Update an inventory unit |
| [Delete inventory unit](/api-reference/deployments/delete-deployment-inventory-unit) | Remove a unit from inventory |


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