Diagnosis
One of the following situations triggered this error message:
You want to display the object management records for materials enteredin the change master record. However, no object management records havebeen maintained.
You are looking at the object overview and have just deleted allexisting object management records,

Procedure
1)
Enter object management records for the materials if required. To dothis, choose menu option Goto, function New objects ->Material and enter the material you require.