ManufacturingKnowledge

Work with change notices > Using the Change Summary panel

Align domain subassemblies using change management

You can align changes from a source bill of materials (BOM) to a target BOM using defined domain subassemblies and the Details panel on the BOM Alignment page.

Procedure

  1. Set domain subassembly preferences.

  2. Open a work package that contains at least one engineering change notice (ECN) or manufacturing change notice (MCN), and in the Track Your Work dialog box, with the Track with this change notice option selected, select a change notice and click Continue.

Note If you are using usage structures, even if you were prompted to track with a change notice, you must also select an active change notice on the BOM Alignment page.

On the BOM Alignment page, the Details panel displays differences between the source and target BOMs, based only on the change notice.

  1. Do one of the following:

To apply an existing focus, from the Focus on list at the top of the Details panel, select one or more manufacturing installs impacted by the change notice.

To create a new focus, select the manufacturing installs that you want to focus upon in the source and target BOMs, and click Focus .

The source and target BOMs are computed again and items outside the focus of the selected scope are grayed out. In the Details panel, three groups display: Impacted Items in Focus Scope, Impacted Items Not in Focus Scope, and Impacted Items Not in Assignment Scope. Tiles display different impacted items with different statuses in the relevant groups. In the source BOM and target BOM, assignment status icons are displayed to identify the assignment state of items reported in the tiles.

  1. In the Details panel, verify and apply appropriate changes to the change notices within the focus scope.

Source: https://docs.sw.siemens.com/en-US/doc/282219420/PL20251212545240207.xid2214895/xid1980518 · retrieved 2026-07-11