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Releasing a Revision or Replacement Part creates a from the old item to the new item. Configure phase-over behavior with cutover fields on the affected item. A Version edits the existing item and creates no supersession. A New Part has no predecessor and also creates none. Only change types that derive a new item from an existing one create supersessions.

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Cutover fields

Set these on a Revision or Replacement Part affected item (under Part Supersession on the affected item’s detail) before you release.

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Supersession modes

The controls how planning handles the old item:

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How downstream honors it

On or after the successor-effectivity date, the supersession applies in these places:
  • MRP records demand that was redirected from the old item to the successor, so planned demand can be shown as “redirected from” the old part. The conversion factor sets how many of the successor replace one old part.
  • Picking resolves the item to pick for each job material by the rules above.
  • Get Method substitutions on a job material keep the original item as the source, so the substitution is traceable.