About MBOM and Date Effectivity

As part of MBOM generation, an MCO is automatically created. The MCO is used as the context change order for date effectivity. By default, this MCO has an infinite start date, as defined in the property emxMBOM.MCO.DefaultEffectivityDate in the emxMBOM.properties file. See the Manufacturing BOM Management Administration Guide.

See Also
About Part Bill of Materials - MBOM Plant-Specific View

When the MBOM related change order (MCO) is promoted to the Implement state, the MBOM Pending relationship is transformed to an MBOM relationship and the proposed date effectivity is transformed into a validated date effectivity. Note: This proposed and validated date effectivity information is not displayed in the user interface.

If a new revision of a child part is released, an MBOM Pending relationship is automatically created between the newly-released revision and its parent part in the MBOM with its start date set to the default date.

The end date of the MBOM relationship (between the previous revision child part and the parent part) is modified. As the MBOM sequence with the newly-revised part is effective starting on its respective start date, the end date for the previous sequence will be set to the new sequence start date.

You can edit the newly-created MCO start date to modify the start date of the MBOM Pending relationship and the end date of the old revision MBOM relationship. With this, you can see the end date for the current MBOM sequence.

Manufacturing parts can be added directly to an MBOM with date effectivity in the MBOM Plant-Specific view. This requires a change order context (MCO). The MCO start date is used to set the start date of the newly-added manufacturing part MBOM relationship.

Here are some properties of the MBOM relationship start and end dates:

  • The MBOM relationship will always have a start date.
  • The MBOM relationship can have an end date in addition to its start date, if it has a next sequence generated.
  • Start and end dates on the MBOM are not directly editable, but can be edited using an MCO.
  • The end date for an MBOM sequence is a result of a new MBOM sequence effecting out the previous sequence.