RE: Bin Location quantity adjustment
Hi, just adding to Inge's reply. There are a few things to note.
If you enable the following setting in the location card, this problem should not occur.

It is indeed very convenient to transfer Bin in Item Reclassification Journals, but it has a default control.
"Bin Mandatory must have a value in Location: Code=WEST. It cannot be zero or empty."

And if there are already open ledger entries in the location, this setting cannot be enabled.
"You cannot change Bin Mandatory because there are one or more open ledger entries on this location."

Hope this helps.
Thanks.
ZHU