---
title: "Amend a purchase order quantity - Impact workspace"
slug: "amend-a-purchase-order-quantity-impact-workspace"
tags: ["Task", "ECM plus"]
status: "update"
updated: 2026-10-21T07:40:53Z
published: 2026-10-21T07:40:53Z
canonical: "docs.staedean.com/amend-a-purchase-order-quantity-impact-workspace"
---

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

# Amend a purchase order quantity - Impact workspace

Use **Amend qty** to change the ordered quantity when you no longer require the original quantity of the affected item.

## Steps

1. Go to **Product information management > Engineering change management > Engineering change orders**.
2. Open a released ECO you want to review.
3. On the Action Pane, in the **Business impact** group, select **Open impact workspace**.

The workspace opens for the selected ECO.

> [!NOTE]
> Note
> 
> If the ECO has no lines yet, the button is unavailable. Add at least one affected product first.
4. In the **Purchase orders** section, locate the affected purchase order line.
5. Select **Amend qty**.

The **Amend Qty** pane opens on the right.
6. Review the purchase order and item number.
7. In the **Amend Qty** field, enter the revised quantity.
8. Select **Amend Qty** to apply the change.

To close the pane without changing the quantity, select **Cancel**.

After the change is complete:

- The purchase order line shows the revised quantity.
- The **Action status** changes to **Amended**.
- An entry is added to the **Change log**. For more information, see [Track actions in the change log](/manufacturing/docs/track-actions-in-the-change-log-impact-workspace).

## Related

- [Manage purchase orders - Impact workspace](/manage-purchase-orders-impact-workspace.md)
- [Get to know impact workspace](/get-to-know-eco-impact-workspace.md)