*Workflows › Reference › Actions › Purchasing*

# Lock purchase order

> Locks a purchase order to freeze its fields and totals.

## At a glance

| Property | Value |
| --- | --- |
| Domain | `purchaseOrders` |
| Group in the editor | Purchasing › Purchase orders |
| Runs as | The owner of the workflow, with their permissions |
| Permission | Edit access to Purchases. Administrators always pass; a module outside the plan blocks everyone. |
| Add-on | Purchases |
| Destructive | Not declared |

ACTION `purchaseOrders.lock`

## Inputs

| Name | Type | Required | Description |
| --- | --- | --- | --- |
| `purchaseOrderId` | string | Yes |  |

## Outputs

| Name | Type | Description |
| --- | --- | --- |
| `purchaseOrderId` | string |  |
| `lockedAt` | string |  |
| `url` | string |  |

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Canonical URL: https://docs.filmo.io/workflows/reference/actions/purchaseorders-lock  
Last updated: 2026-10-25