Diagnosis
One of the following situations triggered this error message:
You want to display the object management records created for equipmentBOMs for this change number. However, none are maintained.
You are looking at the object overview and have just deleted all theobject management records created.

Procedure
1)
If required, create object management records for the equipment BOMs.To do this, choose menu option Goton -> New objects ->Equipment BOM and enter the equipment BOM(s).