1. Scope of Application

Applicable to all merchants within the platform who have officially released experience scores

2. Adjustment Explanation

Since the Late Delivery Rate (LDR) metric has been updated starting from February 27, 2026, and this metric is included in the Store Performance Score (SPS), the calculation rules for the Shop Performance Score (SPS) will be updated accordingly.

• Change in the calculation method of LDR (Late Delivery Rate)

Previously, LDR only calculated shipped orders. The new metric will now include orders that have exceeded the deadline but are still in the "unshipped" status, thus providing a more real-time view of fulfillment health.

• Old Definition:(Delayed Shipment Orders) ÷ (Total Shipment Orders).
• New Definition (effective since February 27, 2026):(Orders with delayed shipment beyond SLA + Orders still unshipped beyond SLA) ÷ (Total orders due within the period)

For details of the relevant policy rules mentioned above, please refer to: <Shop Performance Score (SPS) Guidelines>, <TikTok Shop Fulfillment Policy>, and <Understanding and Managing Your Late Dispatch Rate (LDR)>

3. Update Time and Metric Display

The completion time for the synchronous adjustment of the calculation rules for SPS is expected to be around March 16, at which time the score display on the merchant-side experience score page will also be adjusted synchronously. The computer-side path for the merchant backend experience score (SPS): Seller Center → Account Health → Shop Performance Score