MRP suggesting unnecessary Expedite Message

Hi,

WO 123 Requires Procured Item A with 2 EA quantity on 20-Dec-2022 (Part List Request Date).

Leadtime of Item A = 21 Days in Item Branch,

Purchasing Effective Days of Item A=4 Days in Item Branch

Existing Purchase Order's Order date= 20-Sept-2022, Request Date & Promise Delivery Date= 16 Dec 2022

Now, MRP is suggesting to Expedite Message with Recommended Start date=11-Nov-2022, Recom. Complete date= 02-Dec-2022 & Recom. Complete date=07-Dec-2022

Can you please help why it is showing this unnecessary E message even though we already have a Purchase Order with Request Date & Promise Delivery Date= 16 Dec 2022