Manage BOMs > Restructure the MBOM
Align separate MBOM subassemblies to an EBOM
For large engineering bill of materials (EBOM) and other source structures, assigning elements from an EBOM to a manufacturing bill of materials (MBOM) can be a wide-ranging and time-consuming task. You can more easily break this process into separate subassemblies and perform authoring tasks on smaller structure nodes.
Procedure
In Teamcenter, set domain subassembly preferences.
In Teamcenter Easy Plan, open the BOM Alignment page of the work package that contains the subassemblies to be aligned.
In the EBOM, select an assembly; in the MBOM, select the subassembly to be aligned; and in the MBOM toolbar, click Assignment Scope → Associate Assignment Scope .
An assignment domain relation is created between the engineering assembly and the manufacturing subassembly. You can confirm this assignment by viewing the EBOM assembly name in the MBOM Assignment Domain column. Note You can remove the assignment at any time by selecting the manufacturing assembly in the MBOM and selecting Assignment Scope → Remove Assignment Scope .
- In the MBOM toolbar, select the manufacturing subassembly, and then click Focus .
The EBOM and MBOM panels are filtered to reflect only the scope that you selected and in the MBOM toolbar, standard authoring commands are now available. The EBOM assembly is displayed in the MBOM Assignment Domain column. The 3D viewer panel is also filtered to display only elements in the selected scope.
From the EBOM, assign parts and other elements to the MBOM subassembly as you would from an EBOM assembly to a full MBOM assembly.
To review the effect of your assignments to the complete EBOM-MBOM structure, click Focus .
You can also redefine the scope of the EBOM assembly to a different subassembly by selecting a different MBOM subassembly and clicking Focus
again.
In the EBOM, when the focus is removed, assembly indication icons are not displayed to improve the performance. The MBOM Assignment Domain column displays the EBOM assembly for any additional subassemblies assigned to the MBOM.
- Select the appropriate MBOM subassembly and click Focus
again.
With the focus applied, the EBOM now displays assignment icons.
icons indicate elements that are assigned inside the MBOM subassembly, and you can select these in the EBOM to review their location in the MBOM.
icons indicate elements that are assigned to a different manufacturing assembly that is outside the scope of the MBOM subassembly. Their locations cannot be viewed by clicking them in the EBOM.
Source: https://docs.sw.siemens.com/en-US/doc/282219420/PL20251212545240207.xid2214895/xid1969530 · retrieved 2026-07-11