Currently, there is a known issue regarding a new setting for the Picklist Controller:
Show stock for location
The setting applies to Ad Hoc Picking task Picklist.
If the setting is enabled, the Select a Pick Location screen shows the free stock quantity of the selected item for each location listed on the screen.
This issue affects all product versions from this one and higher:
In some scenarios, the available stock shown to the picker is not correct. Typically, the displayed value is less than the actual value.
Our team is working on solving this issue as soon as possible, but for the moment there is no workaround other than not using the setting, that is, returning to the same way as it was before product version 19.3, which did not show the stock for locations during the Ad Hoc Picking Flow.
Please note that only the displayed stock value is not correct. The actual stock and data integrity are not affected. The use of the setting will not cause any errors in stock.
We will update this document once a fix is released.