Updating Aligned Design Structure
Update a design structure by dragging a part to a design occurrence
Procedure
Set an active change, if required.
Open the required engineering BOM (Usage BOM or Assembly BOM).
OR
Open an engineering BOM first and then open its solution variant from the Solution Variants tab.
Click Align > Open Alignment View.
The design structure and the engineering BOM are now displayed side by side.
Drag a part occurrence to a design occurrence and click Generate.
OR
If you opened a solution variant, first verify if a primary design is set for the selected part in the Aligned Designs section in the Overview tab. The primary design is represented as a special icon. After setting a primary design, drag the selected part to a design occurrence and click Generate.
In the displayed dialog box:
- Select the Run in Background check box if you want to move on to other tasks while the design structure is updated. You will be notified in Alerts once the design structure is updated.
- Click Generate.
An aligned design occurrence is created under the design where you dragged the part occurrence to. If the quantity of the part is more than one, multiple design occurrences are created. The number of the design occurrences is same as the quantity of the aligned part occurrence.
A report is generated in the Newstuff > BOMGeneration folder. You can go through the contents of the report to troubleshoot any design occurrence creation and alignment issues. You can also perform an alignment check to verify if the design occurrences and part occurrences are aligned correctly.
Source: https://docs.sw.siemens.com/en-US/doc/282219420/PL20251212545240207.dbom_ebom_alignment_usage/xid1927981 · retrieved 2026-07-11