Definition and Calculation of FBT Penetration Rate
02/18/2026
Summary
What is the definition and formula for calculating the Actual and Estimated FBT Penetration Rates on TikTok Shop?
- Actual Penetration Rate (last 7 days) = (Number of sub-orders fulfilled by FBT) ÷ (Total sub-orders in seller’s store), excluding influencer sample and cross-border direct shipping orders.
- Estimated Penetration Rate (next 30 days) = (Minimum of projected sales and available inventory for FBT SKUs) ÷ (Average daily sub-orders in past 7 days × 30).
How can sellers access their FBT Penetration Rate targets and what steps are required to join and use FBT?
- Sellers can view FBT targets via Seller Center > Fulfilled by TikTok or the FBT Merchant Portal > Analytics.
- To join FBT, sellers click [Get started] in Seller Center, then use the FBT Merchant Portal to select products, create inbound requests, and provide product, packing, and arrival info per the FBT Inbound Request Creation Guide.
What key inventory and sales data influence the Estimated FBT Penetration Rate calculation?
- The numerator uses the minimum of projected sales in 30 days and available inventory (in-warehouse plus in-transit within 30 days) for FBT SKUs.
- The denominator is based on the average daily sub-orders over the past week, multiplied by 30 days to estimate total orders.
What implications does understanding FBT Penetration Rate have for sellers on TikTok Shop?
- Monitoring penetration rates helps sellers optimize inventory allocation to FBT fulfillment, improving order fulfillment efficiency.
- Accurate projections and inventory management can increase the share of orders fulfilled by TikTok, potentially enhancing customer satisfaction and sales performance.
Definition and Calculation of FBT Penetration Rate
Definition and Calculation Formula of FBT Penetration Rate
(1) Actual Penetration Rate:
Time range: last 7 daysCalculation formula:
- Numerator: Number of sub-orders fulfilled by FBT
- Denominator: The total number of sub-orders of the seller's store
- Special Note: Influencer sample orders and cross-border direct shipping orders are excluded from both the numerator and denominator.
(2) Estimated Penetration Rate:
Time range: the next 30 daysCalculation formula:
- Numerator: For SKUs of associated FBT goods, the number of sales sub-orders that can be generated within the next 30 days: the minimum value of the estimated number of sales sub-orders and the number of available sales inventory (the number of available sales inventory includes in-warehouse inventory and in-transit inventory within 30 days)
- Denominator: Average daily number of sub-orders of the seller's store in the past 7 days * 30
(3) Example:
| SKU | ①Projected Sales in the Next 30 Days | ②FBT In-Warehouse Inventory | ③FBT In-Transit Inventory in the Next 30 Days | Projected Available FBT Fulfillment Orders in the Next 30 Days (Take the minimum value of the ①、②+③ columns) | Projected PenetrationRate |
| SKU A | 100 | 50 | 20 | 70 | |
| SKU B | 50 | 20 | 80 | 50 | |
| SKU C | 150 | 0 | 200 | 150 | |
| SKU D | 100 | 0 | 0 | 0 | |
| Total | 400 | - | - | 270 | 67.5% |
FBT Penetration Rate Target
Path 1 :Seller Center-Fufilled by TikTok

Path 2 :FBT Merchant Portal - AnalyticsHow to join FBT and use FBT
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