Diagnosis
Due to the availability calculation, you cannot enter a &V1& more thanonce in a document.
The error also occurs if you delete an existing item or overwrite itwith another &V1& number and then try to enter the item again withoutsaving first.

Procedure

• You cannot enter a &V1& more than once in a document.


• If you have deleted an item with this &V1&, and you would now like to
enter this &V1& under another item:
Save the document.
Call the document again and enter the required &V1&.