Overshipment Tolerance behaviour difference seems wrong due to PDH restriction

Summary:

Behavior of Overshipment Tolerance is different between OM/Shipping then implemented by PDH

Content (please ensure you mask any confidential information):

User guide is very clear on how shipping tolerances work. You opt-in. Then set the OM parameters to select the source for the tolerances. And then use is in order processing (value will default on order lines based on tolerance set for both Over and Under). Either using OM parameters or value on item in Item Validation organization.

Also, the user guide is very explicit in the restriction it has for undershipment tolerance: See link below for 24C documentation;