ManufacturingKnowledge

Manage BOMs > Assign parts to the MBOM

Run assign and remove actions in the background

You or an administrator can determine when assign and remove actions run in the background. This prevents long delays and possible disconnection from the server when you assign many parts from a source bill of materials (BOM) to a target BOM at the same time, or when you remove many parts from a target BOM.

Procedure

  1. Using the preference MBMMinimumLimitForBackgroundMode in Teamcenter, define the minimum number of lines that you can select and assign or remove without any delay.

If you assign or remove more elements than you specify in the preference MBMMinimumLimitForBackgroundMode, those actions run in the background without affecting your system's current performance. Example If MBMMinimumLimitForBackgroundMode = 1000, when you assign 1000 or more lines from the source BOM to the target BOM, or remove 1000 or more lines from the target BOM, the actions run in the background.

  1. Search for and open a work package with a linked source BOM and target BOM displayed on the BOM Alignment page.

  2. On the BOM Alignment page, select a number of elements greater than the number defined in the MBMMinimumLimitForBackgroundMode preference.

From the source BOM list, and in the target BOM toolbar, click Assign Parts Selected in EBOM .

From the target BOM list, and in the target BOM toolbar, click Remove .

Tip You can also filter the scope of the alignments that take effect when you define the MBMMinimumLimitForBackgroundMode preference, and then assign or remove elements. To filter the scope, select a manufacturing subassembly in the MBOM, and in the MBOM toolbar, click Focus .

A message is displayed, informing you that you may now assign or remove assignments in the background, and that if you choose to do so, you will receive a message when the actions are finished.

  1. In the message dialog box, click Assign in Background or Cancel.

  2. (Optional) Assign or remove elements in the background as needed, and perform any other actions, including performing work within another scope in the target BOM or working in a different work package.

  3. To verify that the background task is completed, in the lower-left corner of Teamcenter Easy Plan, look for a notification, and if one is available, click Alerts .

Details of the notification are displayed regarding the background action.

  1. In the notification, click the work package link.

The BOM Alignment page displays the new assignments where you assigned them.

Source: https://docs.sw.siemens.com/en-US/doc/282219420/PL20251212545240207.xid2214895/jsj1691085023382 · retrieved 2026-07-11