ManufacturingKnowledge

Administering EBOM and MBOM

Delegating, overriding, or copying line properties from MBOM to BOP

End users can override some delegated manufacturing bill of materials (MBOM) line properties in a bill of process (BOP). Delegated properties reference the MBOM and appear in the BOP on assigned (consumed) lines if the MBOM is loaded. To keep the BOP synchronous with the engineering bill of materials (EBOM), administrators can mark a subset of these properties so that MBOM values are delegatable using the MEDelegatedOccurrenceProperties preference.

By default, this preference delegates the following properties: bl_occ_effectivity (occurrence effectivity), bl_quantity (quantity), bl_plmxml_abs_xform (absolute transformation matrix), bl_occ_name (occurrence name), and bl_all_notes (all note types). If a property that was copied over in previous versions is not defined in the MEDelegatedOccurrenceProperties preference, that property is copied over.

Note

  • End users can edit the relative transform matrix in the BOP to align the absolute transformation matrix.

  • By default, quantity is copied to the BOP. If end users delete a quantity value in the BOP, the quantity value is delegated from the MBOM.

Additional properties that can be delegated include bl_formula (variant formula), bl_abs_occ_all_ids (ID in context, all levels), and bl_variant_condition (variant condition).

If the MEDelegatedOccurrenceProperties preference is absent, no properties are delegated. If your organization prefers to copy rather than delegate line properties from the MBOM to the BOP, the property names should be removed from the MEDelegatedOccurrenceProperties preference and added to the MEAssignProperties preference. Properties in MEDelegatedOccurrenceProperties take precedence over properties in MEAssignProperties.

Related Topics

  • Overriding BOM line properties delegated from an MBOM to a BOP

  • What is a part BOM and why use it?

Source: https://docs.sw.siemens.com/en-US/doc/282219420/PL20251212545240207.plm00260/xid1181789 · retrieved 2026-07-11