Diagnosis
Due to the availability calculation, you cannot enter one equipmentseveral times in a document.
The error occurs if you delete an existing item or overwrite an existingitem with a different equipment number and then try to enter the itemagain without saving first.

Procedure

• You cannot enter an equipment more than once in a document.


• However, if you have deleted an item with this equipment and want to
save that equipment using a different item:
Save the document.
Call up the document again and enter the required equipment.