ManufacturingKnowledge

Managing EBOMs-MBOMs

Overriding BOM line properties delegated from an MBOM to a BOP

You 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), your administrator can use the MEDelegatedOccurrenceProperties preference to mark a subset of these properties so that MBOM values are delegatable. Properties that can be delegated include occurrence effectivity, variant formula, quantity, absolute transformation matrix, occurrence name, ID in context (all levels), variant conditions, and any note type. If a property that was copied over in previous versions is not defined in the MEDelegatedOccurrenceProperties preference, that property is copied over and will always be visible since it is independent of the MBOM.

Note

  • You can still edit the relative transform matrix in the BOP to align an absolute transformation matrix.

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

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, an administrator should remove the property names from the MEDelegatedOccurrenceProperties preference and add them instead to the MEAssignProperties preference.

Related Topics

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

  • Reasons for creating an MBOM

  • EBOM-MBOM preferences

Source: https://docs.sw.siemens.com/en-US/doc/282219420/PL20251212545240207.mse/xid1181340 · retrieved 2026-07-11