Comment 2 for bug 1998494

Britta,

In 3.8, you can transfer items to a library without creating an empty call number. I haven't tested in 3.10 yet and I don't have access to 3.9.1.

Have you tried:

If there is no call number on the destination library

In the Actions menu in Holdings View on the destination record, mark the destination library as transfer destination.
In the Holdings View of the record with the item(s) to be transferred, check to select that item.
From the Actions menu, select Transfer – Transfer Items to Marked Destination.

You have to transfer the item and not the item and call number. The call number is then auto created in the destination library.

That being said, there still may be instances where we do need to create an empty call number, so I would still consider this a bug.