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Part BOM Relationships

February 12, 2026 03:33 AM
1 min read

A Part BOM relationship is a relationship between a Parent Part and its Child Part defined in the BOM relationships accordion tab of the Parent Part.

To view a Part BOM relationship:

  1. Open the Parent Part item.
  2. Go to the BOM tab.
  3. In the BOM grid, right-click a Child à BOM -> Open. The view of the Part BOM relationship between the Parent and the Child appears.

Figure 38.

  • Quantity – The number of Parts used in the assembly.
  • Part Number– The part number.

  • Reference Designator – Used primarily in electronic assemblies to list labels of each Instance.

    The relationships accordion of the Part BOM contains three tabs:

  • Instances – Refer to section Instances for details.
  • Substitutes – Refer to section Substitutes for details.
  • Effectivity – Refer to section Effectivity Management for details.