About Manufacturing Responsibility

One or more plants can be assigned as the responsible manufacturing plants for a part. Manufacturing responsibility assignment is required to identify which plants the MBOM assembly needs to be generated or updated.

This page discusses:

See Also
About Manufacturing Plants
Assigning Manufacturing Responsibility
About Manufacturing Responsibility
Manufacturing Responsibility Assignments
Changing Manufacturing Responsibility

An MECO or CA is required to release a manufacturing responsibility assignment. Creation of a new MBOM happens only after the release of the change object. By default, when the manufacturing responsibility assignment is done, the MECO or CA connected to the unreleased part is assigned as the change object. This however can be changed.

Manufacturing responsibility is assigned at the end item level and automatically propagated down the structure to those parts that are not end items. This is done by running the All Level MBOM Generation program from the end item part. If an BOM is created with both EC Part policy and Development Part policy parts, manufacturing responsibility is propagated to the subassembly structure irrespective of the policy.

For non-end items, manufacturing responsibility represents the plants associated to their immediate end items.

Lead and Parallel Plants

In a centralized manufacturing engineering setup, responsible manufacturing plants are classified as lead or parallel plants. The lead plant assignment can be used as a reference if a manufacturing engineer decides to copy an MBOM from one plant to another instead of creating an MBOM for each plant based on the common EBOM definition and modifying each plant’s MBOM by implementing local MBOM changes for each plant individually. This technique works well if there are a number of plants that have similar process and resources where the MBOM from the lead plant can be copied and reused in other parallel plants. Only one plant can be the lead plant, while many plants can be parallel plants for a part.

Manufacturing Status

A Manufacturing Engineer or Senior Manufacturing Engineer can inactivate a plant that has already been added as a manufacturing responsibility. When a part is inactive in a plant, EBOM changes on the part are not copied as MBOM changes in the plant. An inactive part in a plant can be made active at any time and then the EBOM changes will be copied to the plant as MBOM changes. A pending relationship can be switched without a new MECO or CA. Changing a current relationship requires a new MECO or CA.

Note: A lead plant cannot be made inactive at any point in time.

Switch to Inactive

  • Switching the manufacturing status on a non-lead plant refreshes the Manufacturing Responsibility page to show the status of the selected plant as inactive.
  • If there is a pending active relationship, the system just makes the active Manufacturing Relationship an inactive one and refreshes the page.
  • If there is a current active relationship, the system prompts for an MECO to effect in the relationship. The Manufacturing Responsibility page reflects a new pending inactive relationship of the selected plant that is effected in by the specified MECO.

Switch to Active

  • If there is a pending inactive relationship the system just makes the inactive manufacturing relationship active and refreshes the page.
  • If there is a current manufacturing relationship, the system prompts to enter a new MECO or CA; behavior is similar to that of inactivating a plant. The Manufacturing Responsibility page reflects a new pending active relationship of the plant selected that is effected in by the specified MECO or CA.

Plant Item Markup

Plant Item markups can be created to save changes to existing manufacturing responsibility attributes. When changes have been made on the Manufacturing Responsibility page, the Save Markup command allows you to save them as a plant item markup. These markups can then be viewed in the Markups tab of the part's Bill of Materials page.

A plant item markup cannot be used to add a new plant to an end item part. If you attempt to save the manufacturing responsibility as a markup, an alert is shown: 

Add new manufacturing responsibility is not supported by
Plant Item Markup.

Plant item mark-up (PIMK) is supported with the MECO/CA change process. The part must be in the Pending state to use a related CA for the plant item markup creation.

Make/Buy Value

When a Manufacturing Responsibility relationship is created upon adding a plant to a part, the Production Make/Buy attribute is automatically populated based on the part's Design/Purchase value.

  • If the Design/Purchase value is "Design" then the Make/Buy value is set to "Make."
  • If the Design/Purchase value is "Purchase" then the Make/Buy value is set to "Buy."

If the Status value is "Pending," the Make/Buy value can be edited from the Manufacturing Responsibility page.

Note: When an MCO is generated for this, the Manufacturing Engineer can reassign the Make/Buy value from the MCO's Affected Part Revision page, in which case the change is reflected in the Manufacturing Responsibility page.

If an MCO introduces the Make/Buy change, a new sequence is created when the part is added as the MCO affected item. This is plant-specific. This addition would create a sequence in the Manufacturing Responsibility page with the change value “System” and the Status value "Current."

End Item Part Revision

Manufacturing responsibility is part revision based.

  • When propagating manufacturing responsibility to a new revision, only the highest sequence of the manufacturing responsibility (pending or current) is considered.
  • Manufacturing responsibility assignment or change is for only the latest revision of the part.
  • If the released part has a pending manufacturing responsibility, upon revision, the plant is floated to the new revision of the part. The plant is connected only to the latest unreleased revision.
  • If the released part has a current manufacturing responsibility, upon revision, the plant is replicated to the new revision of the part. The plant is connected to both revisions.

The following actions occur when an end item part is revised:

  • All the pending manufacturing responsibility assignments connected to the old revisions are floated to the new revision. The pending manufacturing responsibilities of the old revision are removed and corresponding new manufacturing responsibilities are created for the new revision.
  • The change order corresponding to the old revision manufacturing responsibility assignment is also floated. The new revision is connected to the change order with the “Manufacturing Responsibility Change” relationship for manufacturing responsibility assignments.
  • The current manufacturing responsibility assignments connected to the old revision are replicated to the newly-created revisions. The new current manufacturing responsibilities (corresponding to current manufacturing responsibilities of the old revision) are created for the new revision. No current manufacturing responsibilities are removed from the old revision.
  • The change order corresponding to the old revision is replicated to the new revision.

On releasing the new revision of the end item part in the MBOM assembly, the new revision affects the old revision, but does not replace it.

Non End Item Part Revision

A non end item child part is connected to all manufacturing plants that are connected to its immediate end items.

The Manufacturing Responsibility page of the child part shows manufacturing responsibilities of all its immediate end-item parent parts. (Duplicate manufacturing responsibilities are not displayed.)

When a non end item part is revised:

  • All current and pending manufacturing responsibilities of the previous revision are replicated to the new revision.
  • No manufacturing responsibilities of the previous revision are removed.
  • The corresponding change order is also connected to the new revision with the “Manufacturing Responsibility Change” relationship.