ManufacturingKnowledge

Work with change notices

Remove or restore redundant impact indications

Using an engineering or manufacturing change notice (ECN or MCN), you can manually clear impact indications from assigned parts and product views (PVs) in a bill of process (BOP) if such indications do not require action. Impact indications might include part attribute changes, part removal, part replacement, or part revision notices on assigned parts, and PVs that originate from changes to the associated engineering or manufacturing bill of materials (EBOM or MBOM).

You can also restore impact indications that were previously cleared.

Note

When applicable, clearing part or PV impact indications also updates relevant impact indications on the BOP objects associated with these parts and PVs.

Procedure

  1. Associate a work package with a change notice, open the work package, and navigate to planning tasks on the Process Planning, Work Instructions Authoring, or Product BOP Authoring page.

If the change notice is active, the Track Your Work dialog box is displayed.

  1. In the Track Your Work dialog box, from the Track with this change notice list, select the relevant change notice, and then click Continue to open that part or assembly in the planning task page.

    Note Any relevant impact indications are displayed when the BOP opens.

  2. Click Show Comparison .

Icons for parts impacted by the change notice are displayed in the information panel beneath the Process panel.

  1. Click Calculate Impact on Product Views.

PVs impacted by the change notice are highlighted in orange in the Visuals panel.

  1. To clear impact indications from a part or PV, in the Process panel, select an impacted element.

Parts associated with the selected impacted element are detailed in the Parts tab of the information panel, as in this Process Planning page example.

  1. Do one of the following.

    To clear impact indications from a part, in the Parts tab, select the part or parts with impact indications to be cleared, and in the tool bar, click Set Impact as Handled . Note

      Impact indications on background parts are not currently shown in the Parts tab but can still impact PVs.
     
     
      The Set Impact as Handled command is disabled for parts that are missing in the source, or if there is no impact on the selected item. The command is also not available on the Product BOP Authoring page.
    

    Impact indications are hidden for the selected part.

    The list of parts for the selected tracking change notice are displayed in the Impacts Handled panel. This panel displays parts or PVs for which impact indications are cleared in the BOP.

To hide impact indications from PVs, in the Visuals panel, select the relevant PV and click Set Impact as Handled . Note PV impact indications may also be due to Product Manufacturing Information (PMI). Review PMI impact before you clear PV impact indications.

  1. (Optional) To redisplay impact indications, in the Impacts Handled panel, select the parts or PVs to be restored and click Restore Impact Indication .

    Note Restoring impact indications may update the relevant impact indication on the associated BOP objects.

  2. For PVs, after clicking Restore Impact Indication, also click Calculate Impact on Product Views to view the restored impact indications to the relevant PVs.

Source: https://docs.sw.siemens.com/en-US/doc/282219420/PL20251212545240207.xid2214895/xid2214247 · retrieved 2026-07-11