TikTok Shop Adjusts ISRR Calculation Method for the U.S. Market
TikTok Shop updated the Invalid Seller Rejection Rate (ISRR) calculation method for the U.S. market, requiring sellers to monitor inventory, order confirmation, cancellations, and pre-shipment rejection performance.
What are the key facts?
- 1TikTok Shop updated the ISRR calculation method for U.S. sellers
- 2The calculation focuses on controllable and eligible seller rejection cases
- 3The change involves order and inventory performance
What happened?
TikTok Shop updated the calculation method for the Invalid Seller Rejection Rate (ISRR) for U.S. sellers. The change is intended to focus the calculation on seller-controllable rejection cases that meet the statistical criteria, while allowing sellers to see performance trends earlier. The announcement did not provide a single new threshold applicable to all stores, but the changes affect store-health performance related to order confirmation, inventory accuracy, product availability, order cancellations, and pre-shipment rejections. Inventory-sync delays, discrepancies between ERP and platform inventory, shared inventory across multiple channels, and forced cancellations after supplier stockouts may all be affected. Sellers should review the ISRR numerator, denominator, and exclusions to confirm which orders enter the metric, and promptly delist out-of-stock SKUs or reduce their inventory levels. Variant inventory errors involving home goods, apparel, and products with multiple colors and sizes may also worsen the metric.
What does this mean for cross-border sellers?
Following TikTok Shop’s ISRR calculation adjustment for the U.S. market, order confirmation, inventory accuracy, product availability, canceled orders, and pre-shipment rejection performance may affect store health. Inventory-sync delays, ERP-platform discrepancies, shared multichannel inventory, and forced cancellations after stockouts will increase operating risk.
What should sellers do now?
- 1Log in to the U.S. store and check the ISRR numerator, denominator, and exclusions item by item; classify order confirmations, cancellations, and pre-shipment rejections, and create a reviewable metric checklist.Procurement List
- 2For U.S. home-goods, apparel, and multi-color or multi-size listings, compare ERP, TikTok Shop, and other-channel inventory one by one; mark discrepancies and produce a list of SKUs to delist or reduce inventory for.
- 3Check out-of-stock SKUs and supplier availability for the U.S. market; delist or reduce inventory first, then review forced cancellations and pre-shipment rejection orders, ensuring each abnormal SKU has a handling record.