SAP Message AD239 - Unable to delete object & (&) because it is still in use

Diagnosis
The specified object could not be deleted because it is still beingused in other objects. These would be inconsistent if the object weredeleted.

Procedure
You can only delete the object once you have deleted its uses in otherobjects. You can check which other objects are still using the specifiedobject by means of the where-used list.