> ## Documentation Index > Fetch the complete documentation index at: https://docs.vortexiq.ai/llms.txt > Use this file to discover all available pages before exploring further. # Late Shipment Rate, Amazon Seller Central > Late Shipment Rate for Amazon Seller Central. Tracked live in Vortex IQ Nerve Centre. How to read it, why it matters, and how to act on it. **Card class:** [Non-Hero](/nerve-centre/overview#card-classes-explained) • **Category:** [Account Health](/nerve-centre/connectors#connectors-by-type) ## At a glance > The share of your seller-fulfilled orders that shipped after their expected ship date. Late Shipment Rate is one of the three core seller-fulfilled performance metrics Amazon scores (with Cancellation Rate and Valid Tracking Rate), and it directly affects your account health and Buy Box eligibility. It is an FBM metric: when you ship orders yourself, missing the ship-by window counts against you. Amazon sets a strict ceiling, and a breach can suppress listings or put the selling account at risk. The fix is almost always operational, tighter dispatch discipline and realistic handling times. | | | | ------------------------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | **What it counts** | The percentage of seller-fulfilled (FBM) orders confirmed as shipped after the expected ship date, over the window. An order is late if dispatch confirmation lands after the ship-by date Amazon set from your handling time. | | **FBA vs FBM** | This is an **FBM / Seller-Fulfilled Prime** metric. Amazon ships FBA orders itself, so FBA orders do not count against your Late Shipment Rate. An FBA-only seller usually sees a near-empty value. | | **Why it matters** | Late shipments break the buyer's delivery promise, drive complaints and INR (item-not-received) claims, and damage account health. Amazon enforces a ceiling; persistent breaches can suppress listings or deactivate the account. | | **Handling time link** | The expected ship date is derived from the handling time you set per listing. An over-optimistic handling time manufactures late shipments; padding it realistically is often the simplest fix. | | **Tracking link** | Late Shipment Rate works alongside Valid Tracking Rate. Confirming dispatch with valid tracking on time is what keeps both healthy. | | **Account-health triad** | Read with [Pre-Fulfilment Cancel Rate](/nerve-centre/kpi-cards/amazon-seller/pre-fulfilment-cancel-rate) and [Order Defect Rate](/nerve-centre/kpi-cards/amazon-seller/order-defect-rate) for the full seller-performance picture. | | **Reading the gauge** | Lower is better. Comfortably under the warn line is healthy; nudging the breach line is an account-risk situation needing immediate operational attention. | | **Currency / unit** | percent | | **Time window** | `30D vsP` (last 30 days vs the prior 30 days) | | **Alert trigger** | `>3.5% (warn) / >4% (breach)` | | **Roles** | owner, operations | ## Calculation Calculated automatically from your Amazon Seller Central data. See the At a glance summary above for what the metric tracks and the worked example below for a typical reading. ## Worked example A garden-tools seller running FBM on Amazon UK, 30-day window 02 Apr 26 to 01 May 26 vs the prior 30 days. All numbers illustrative. | Cause of late shipment | Late orders | Notes | | ------------------------------------------ | ----------- | ---------------------------------------- | | Handling time too short for bulky items | 14 | Set to 1 day, realistically needs 2 | | Carrier collection missed on a Friday | 6 | Weekend pushed dispatch to Monday | | Stock at a second warehouse, slow transfer | 5 | Inventory not where the order routed | | Bank-holiday cut-off not adjusted | 3 | Handling time not paused for the holiday | | **Total late orders** | **28** | | | **Total seller-fulfilled orders** | **800** | | | **Late Shipment Rate** | **3.5%** | 28 / 800 | ```text theme={null} Late Shipment Rate = orders shipped after expected ship date / total seller-fulfilled orders = 28 / 800 = 3.5% ``` Five things to notice: 1. **3.5% hits the warn line and is one bad day from a breach.** At the `>3.5% (warn)` threshold with `>4% (breach)` close behind, Vortex IQ Nerve Centre flags this. A single missed carrier collection could tip it into breach territory, where listing suppression and account risk begin. 2. **Half the lateness is a handling-time setting, not a real delay.** Fourteen of the 28 late orders are bulky items given a 1-day handling time they cannot meet. Padding the handling time to 2 days for those SKUs removes the manufactured lateness without shipping any faster. 3. **Weekends and holidays are predictable failure points.** The missed Friday collection and the un-adjusted bank holiday are calendar problems. Setting realistic cut-offs and pausing handling time over holidays prevents both. 4. **The denominator protects an FBA-heavy seller.** This metric only counts seller-fulfilled orders. A seller who moves these SKUs to FBA removes them from the calculation entirely, because Amazon then owns the shipping. 5. **The fix is operational, not promotional.** Nothing here is solved by price or content. Tighter dispatch discipline, realistic handling times, and holiday-aware cut-offs are the levers. Pair with [Order Defect Rate](/nerve-centre/kpi-cards/amazon-seller/order-defect-rate) to see the downstream complaint impact. ## Sibling cards merchants should reference together Late Shipment Rate is one leg of seller performance; read it with: | Card | Why pair it with Late Shipment Rate | | ---------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------- | | [Pre-Fulfilment Cancel Rate](/nerve-centre/kpi-cards/amazon-seller/pre-fulfilment-cancel-rate) | The second seller-fulfilled pillar; the same operations gap often moves both. | | [Order Defect Rate](/nerve-centre/kpi-cards/amazon-seller/order-defect-rate) | Late shipments drive defects and INR claims; this is the downstream metric. | | [Account Health Status](/nerve-centre/kpi-cards/amazon-seller/account-health-status) | The overall standing this metric feeds; watch it when lateness climbs. | | [A-to-z Guarantee Claims (open)](/nerve-centre/kpi-cards/amazon-seller/a-to-z-guarantee-claims-open) | Late and non-delivery is a leading cause of A-to-z claims. | | [Negative Feedback (30d)](/nerve-centre/kpi-cards/amazon-seller/negative-feedback-30d) | Late deliveries generate negative feedback; the two tend to move together. | ## Reconciling against Amazon Seller Central **Where to look in Amazon Seller Central:** > Seller Central → Performance → **Account Health**. The **Late Shipment Rate** tile under seller-fulfilled performance is the native figure, with Amazon's current target shown alongside. For the order-level detail, Seller Central → Reports → Fulfilment, or the Manage Orders view filtered to late-dispatched orders for the same range. **Timing, settlement, and reporting-lag table:** | Topic | Detail | | ----------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | **Timezone** | The Account Health page uses your marketplace account timezone; Vortex IQ aligns to your configured reporting timezone. An order shipped just after midnight relative to its ship-by can fall differently across timezones. | | **Window definition** | Amazon presents Late Shipment Rate over its own rolling windows (commonly 10-day and 30-day views). Vortex IQ uses 30D vs prior 30D; the headline differs if you compare to Amazon's 10-day figure. | | **Ship-confirm timing** | Lateness is judged on when dispatch is confirmed, not when the parcel physically left. Confirming dispatch promptly (even before collection) matters for the metric. | | **Reporting lag** | The Account Health page recomputes on Amazon's cadence; a late order can take a refresh cycle to appear. The card refreshes on the standard data cadence. | **Why our number may legitimately differ from Account Health:** | Reason | Direction | Why | | ------------------------------------- | --------- | -------------------------------------------------------------------------------------------- | | **Window length** | Either | Comparing the card's 30D to Amazon's 10-day tile gives different rates; match the window. | | **Ship-confirm vs physical dispatch** | Either | Edge cases around when dispatch was confirmed vs collected shift which orders count as late. | | **Timezone boundary** | Marginal | Orders near the ship-by deadline fall differently across timezones. | | **Recompute lag** | Temporary | The Account Health tile and the card can be briefly out of sync after a fresh late order. | **Cross-connector reconciliation against other connectors the same seller may run:** | Card | Expected relationship | What causes legitimate divergence | | ---------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------ | | [`ebay.late-shipment-rate`](/nerve-centre/kpi-cards/ebay/late-shipment-rate) | **Marketplace peer.** eBay scores late dispatch under its own seller-standards rules with different windows and thresholds. Independent populations. | Different definitions and ceilings; use as a peer benchmark, not a line-for-line reconciliation. | | [`shopify.total_revenue`](/nerve-centre/kpi-cards/shopify/total-revenue) | **Independent channel.** A shared fulfilment operation that ships both Amazon and DTC late will show stress on both, but Shopify has no equivalent scored metric. | No reconciliation; the shared cause (warehouse capacity, carrier issues) is the link, not the numbers. | ## Known limitations / merchant FAQs **Does this include FBA orders?** No. Amazon ships FBA orders itself, so they do not count against your Late Shipment Rate. This is a seller-fulfilled (FBM / Seller-Fulfilled Prime) metric. An FBA-only seller typically sees a near-empty value. **My number here does not match the rate on my Account Health page. Why?** The most common reason is window length. Amazon shows Late Shipment Rate over both a 10-day and a 30-day view; this card uses 30D vs prior 30D. Compare like for like before assuming a real difference. Timezone and recompute lag account for small residual gaps. **Half my late shipments are not really late. What is going on?** A handling time set shorter than you can actually achieve manufactures lateness: Amazon computes the ship-by date from your handling time, so an over-optimistic setting guarantees late orders. Padding handling time to a realistic value on bulky or slow SKUs is often the single biggest fix. **Does confirming dispatch early help?** Yes. The metric is judged on when you confirm dispatch with valid tracking, not when the parcel physically leaves. Confirming promptly, and ideally pre-printing labels and confirming as items are picked, protects the metric. **Can I change the alert threshold?** Yes. The `>3.5% (warn) / >4% (breach)` defaults are configurable per profile in the Sensitivity tab. Amazon enforces its own ceiling regardless, so keep the warn line below Amazon's target to give yourself reaction time. *** ### Tracked live in Vortex IQ Nerve Centre *Late Shipment Rate* is one of hundreds of KPI pulses Vortex IQ tracks across Amazon Seller Central and 70+ other ecommerce connectors. Nerve Centre runs the detection layer; Vortex Mind investigates the cause when something moves; Ask Viq lets you interrogate any number in plain English. [Start for free](https://app.vortexiq.ai/login) or [book a demo](https://www.vortexiq.ai/contact-us) to see this metric running on your own data.