Warning - Seller Fulfilled Prime - Performance drop on On-Time Shipment rate - Week 43

Just got the below. Looking on performance for this time cannot see issue.

Your on-time Shipment rate for your Seller Fulfilled Prime orders has fallen below the 99% requirement of the program. In the period from 25th Oct to 30th Oct (week 43) , your on-time shipment rate was 95.56%

On-time Shipment rate accuracy is the percentage of seller-fulfilled packages that are shipped by the estimated dispatch date. For orders you receive before the website cut-off time, you are expected to continue shipping these on the same day to which the order was placed.

One of the requirements of the Seller Fulfilled Prime program is to ship at least 99% of your Seller Fulfilled Prime orders on or before the promised ship date. Failure to meet the program requirements will result in suspending your eligibility for Seller Fulfilled Prime and turning off the Prime badge on your Seller Fulfilled Prime items.

In order to avoid losing your eligibility, you need to submit a Plan of Action that explains:

Why your Seller Fulfilled Prime on-time shipment rate has fallen below the 99% level?
What actions are you taking to remedy the situation?
What measures you are putting in place to avoid the reoccurrence of this problem?
What is the time frame for the implementation of this POA?"

To review your Seller Fulfilled Prime Performance Metrics and affected orders, you can visit your Seller Fulfilled Prime Performance Dashboard here - https://sellercentral-europe.amazon.com/seller-fulfilled-prime/seller-performance and click on ‘Download Defect Report’ , ensure you download the last 15 days of data and then filter the report to cover delivery dates within the time period stated above.

Please note:

Please respond to this email only through Seller Central case log. Please click on the link to reply over the case: https://sellercentral-europe.amazon.com/cu/case-lobby?ref=xx_caselog_count_home.
For all proactive POAs, please reach out to Seller Support team with required details/valid proofs.
If the SEA is missed because of the carrier, please get an acknowledgement from carrier with full details :

a)Date and time
b)No.of Units missed
c)Reason for the miss
d)Precautions taken

Your Performance metrics are subject to change over time as the data matures in our system.

Please respond to this email no later than Friday, 05-11-2021, 1PM. If responded within this timeframe, we aim to respond to your plan of action within 2 working days."

Kind Regards
Seller Fulfilled Prime Performance Team

Thank you for selling with Amazon.

Sharda R.
Amazon.co.uk Seller Support

Screen shot covering the time in the email