Today it's possible to pick items from a location without license plate. With this step, you have to define or scan a license plate on which you post the picked items. It can happen very quickly, that instead of scanning the license plate the location is scanned again. The license plate is created in database.

After this you’re not able anymore to pick from the location because the system thinks, that I’m trying to pick from license plate instead of the location. 

So, there should be a mechanism to prevent the creation of a license plate with the same name as a location. Ideally this could be a parameter on location profile to control it by location.