Engineering BOM Management – Usage > Create and maintain Assembly BOM
Create an Assembly BOM manually
Create an Assembly BOM manually
You can manually create an Assembly BOM by adding child items.
For a Configurable Assembly
part, you create an Assembly BOM
manually by adding child and sibling parts to it. After creating the Assembly BOM, you can generate its aligned design BOM.
Procedure Open the part and go to the Content tab.
Click Add
Child to add a new part.
You can add an existing part or solution variant from Search or Palette. Note You can also reuse revision-controlled parts and assemblies. To do so, ensure that these parts are qualified as engineering Parts by the administrator.
If you choose to add a new part, in the New tab:
Enter the required information. Select the Design Required check box if you need a corresponding design. Select the Automatically Create Design check box if you want the design to be automatically created and aligned to the part.ORClick Add Design to manually create a design. In the Add Design panel, enter the required information, and click Add.After manually adding a design, if you select the Automatically Create Design check box, the manually added design is ignored, and a new design is automatically created by Teamcenter and aligned to the part.If the selected parent part is a supplier part, the child part that you add is treated as a spare part.
Follow the above steps to build the Assembly BOM structure by adding parts as required. To add parts that are at the same level as the selected part, click Add
Sibling.
You can include embedded software artifacts in the structure. For example, the part Tire Pressure Sensor in the product Crosskart can be programmed such that when the air pressure drops below the product's recommended level, the sensor captures this information, and the dashboard indicator lights up.
Software developers create and maintain the software artifacts using the Embedded Software Management functionality. Additionally, you can include ECAD parts created and managed in integrated Electronic Design Automation (EDA) applications. ECAD parts are represented both as designs (in the design BOM) and as parts (in the engineering BOM), hence they are shared between design structure and Assembly BOM. Note It is recommended that you edit these parts in the integrated EDA application, and not directly in the BOM.
Additionally, you can carry over parts from one Assembly BOM to another.
To remove a part from the structure, right-click it and select Remove . If you are not able to remove an aligned occurrence, contact your administrator.
The element is removed and it may split due to effectivity cutback.
What to do next After creating a Assembly BOM, you must set maturity levels for the newly added parts. You can also set the assembly indicator. If the newly added part is a piece part, bought out part, purchased assembly, or a foreign part, you can edit it and select the Supplier Part in the Assembly Indicator list. While setting up the value in the Assembly Indicator list, if the part is not a Generic Part, Configurable Assembly, or a Supplier Part, leave the value blank.
If your administrator has enabled effectivity propagation on your structure, you can view the Occurrence ECN In and Occurrence ECN Out properties for your parts. They show the responsible ECN names from which the part has derived its element effectivity start and end dates.
Source: https://docs.sw.siemens.com/documentation/external/PL20251212545240207/en-US/tc_help/ebom_usage/dbl1737238845103/xid1971374.html · retrieved 2026-07-11