Manage BOMs > Restructure the MBOM
Replace parts and add or remove structure levels in an MBOM
In addition to letting you assign and remove parts using change management tools, Easy Plan lets you replace parts or manufacturing assemblies assigned to your manufacturing bill of materials (MBOM) or other target BOM, with other parts or assemblies independent of the engineering bill of materials (EBOM) or other source BOM. You can also add or remove structure levels to restructure MBOM parts and manufacturing assemblies.
Note
To avoid broken links in your work package bill of process (BOP), check BOP assignments after part replacement or restructuring.
After part replacement or restructuring, check the link for the consumed nodes in your work package bill of process (BOP).
Procedure
Search for and open a work package and navigate to the BOM Alignment page.
(Optional) Enable Show Assignment State if you want to visualize assignment statuses between the EBOM and MBOM.
Do one or more of the following.
To do this Do this Replace a part or assembly in the MBOM with another part or assembly In the MBOM, select the part or assembly to be replaced and choose Edit Structure → Replace . In the Replace dialog box, do any of the following. From the Type list, select an object type and in the Name text box, type a unique name for the new part or assembly. Click the Palette tab and select the end item from the resulting Clipboard, Favorites, or Recent group. Click the Search tab to locate the item. Click the Classification tab to select a classified object to add as a replacement. Click Replace. If Show Assignment State is enabled, at the prompt, do either of the following. To update changes to assignment indications in the MBOM, click Update Now. To ignore assignment tracking, click Switch Off Indications. In the MBOM panel, the original part or assembly is replaced. In the EBOM panel, which is independent of the MBOM, the original part or assembly is retained. Add existing MBOM parts to a new structure level In the MBOM, press the Ctrl and Shift keys to select the parts or assemblies that you want to add to a new structure level, and then choose Edit Structure → Insert Level . In the Insert Level dialog box, do one of the following. From the Type list, select an object type and in the Name text box, type a unique name for the new level. Click the Palette tab and select the end item from the resulting Clipboard, Favorites, or Recent group. Click the Search tab to locate the item. Click the Classification tab to select a classified object to add as a new level. In the Insert Level dialog box, click Insert.In the MBOM, a new structure level is displayed. The parts you selected now become children of the new level. Remove a level from the MBOM but retain its contents In the MBOM, select the level structure to be removed, and choose Edit Structure → Remove Level . The level is removed but its child objects are now contained in its parent (one level up). The child objects of the selected occurrence are associated directly to the parent object of the selected occurrence. Note If an assembly is assigned from EBOM to MBOM and the parts below this assembly are consumed in the BOP, you must reassign the parts following removal of this level in the MBOM. Remove a part or assembly level and all its child nodes from the MBOM In the MBOM, select the level structure to be removed, and choose Edit Structure → Remove . The level and all its contents are removed from the MBOM.Check the consumption of restructured parts assigned to the BOP.
Source: https://docs.sw.siemens.com/en-US/doc/282219420/PL20251212545240207.xid2214895/bat1714484204624 · retrieved 2026-07-11