In this activity you can define fields in the BOM item and the network activity as reference points, or delete such a definition.
Defining other fields as reference points is obsolete, since as from Release 4.6A there is a Reference point field in the BOM item and the network activity
We recommend that you use the new Reference point field. However, the system ignores this field, if other fields have been defined as reference points. Therefore you must delete existing entries in this Customizing activity, before you can use the new field.
If necessary, delete existing entries, as long as they are not used in existing projects and bills of material.