Late Dispatch Rate, Walmart Marketplace

Late Dispatch Rate for Walmart Marketplace stores. Tracked live in Vortex IQ Nerve Centre. How to read it, why it matters, and how to act on it.

Metrics type: Key Metrics • Category: Marketplace

At a glance

This card tracks the share of seller-fulfilled orders dispatched after their estimated ship date over the selected period. Walmart penalises late dispatches with bid-visibility cuts above its lower penalty threshold and account-suspension risk when the rate stays high. Sellers watch it because the on-time dispatch SLA is the account-health KPI most easily broken by everyday warehouse hiccups.

What it counts	The percentage of seller-fulfilled Walmart orders dispatched after their estimated ship date in the selected period.
Sample type	Backend API data from Walmart Marketplace, refreshed on the standard data refresh.
Why it matters	Late dispatches breach Walmart’s on-time SLA, triggering bid-visibility cuts and, if sustained, suspension risk and loss of Pro Seller status.
Reading the value	Lower is better; a reading above the alert threshold means dispatches are slipping into Walmart’s penalty zone.
Currency	percent
Time window	30D vsP
Alert trigger	>1% (Walmart penalty threshold)
Sentiment key	wal_late_dispatch_rate
Roles	owner, operations

Calculation

Vortex IQ divides orders dispatched after their estimated ship date by total seller-fulfilled orders over the selected window and compares against the prior period for direction. The figure is shown as a gauge against Walmart’s published penalty threshold. As the At a glance summary notes, the lower penalty line drives visibility cuts while sustained high rates risk suspension; the worked example below shows how a short operational disruption can move the rate.

Worked example

A representative reading of Late Dispatch Rate for a typical merchant on Walmart Marketplace. Over the 30 days to 12 Mar 26 a seller sees Late Dispatch Rate climb from a representative 0.6% to 1.4%, above Walmart’s penalty threshold and up versus the prior period. The spike traces back to a two-day carrier pickup gap mid-month. The reading means the on-time SLA is now in the penalty zone and search visibility is at risk, so the action is to clear the backlog, add a backup carrier for peak days, and watch the rolling rate fall back under the threshold. For deeper investigation, use Vortex Mind to trace upstream causes; for natural-language exploration, ask Ask Viq.

Sibling cards merchants should reference together

Card	Why merchants reach for it
wal_sla_compliance	The positive mirror of this rate; shows on-time SLA headroom.
wal_alert_dispatch_sla_miss	Lists the specific open orders about to push this rate higher.
wal_pending_dispatch	The dispatch queue that determines whether the rate will rise.
wal_cancellation_rate	The sibling account-health KPI often affected by the same disruptions.
wal_alert_account_health_drop	The composite tripwire that fires when this rate breaches.

Reconciling against Walmart Seller Center

Where to look in Walmart Seller Center:

Verify against the Performance or Scorecard area, where Walmart reports on-time dispatch and the penalty threshold currently applied, and the Order Management area for the underlying late orders. The scorecard shows how the rate maps to your account-health standing.

Why the Vortex IQ value may legitimately differ:

Reason	Direction	What to do
Period boundary. Vortex IQ uses 30D vsP rolling by default; Seller Center may use calendar periods.	Variable	Match the period range.
Time zone. Seller Center uses the account time zone; Vortex IQ aligns to the merchant reporting time zone.	Marginal	Confirm time zone match.
Filter scope. Profile-level filters (fulfilment type, test orders) may narrow the Vortex IQ view.	Variable	Match filter settings.

Cross-connector reconciliation: complement with sibling cards in the same category for the full diagnostic picture. For divergence investigations, use Vortex Mind.

Known limitations / merchant FAQs

Q: How often does Late Dispatch Rate update? The card refreshes on the standard data refresh (typically every 30-60 minutes for live integrations). For real-time signals, force a manual refresh from the dashboard.

Q: Why does my Walmart Seller Center show a different number? Seller Center counts an order as on-time once a valid tracking event is recorded, while Vortex IQ uses a rolling window that may sample the dispatch confirmation at a different moment. Time-zone and filter scope (fulfilment type or test orders) can also shift which orders are counted as late.

Q: Do WFS orders affect this rate? No, WFS orders are dispatched by Walmart, so they sit outside your seller-fulfilled dispatch SLA; this card reflects only the orders you ship yourself.

Q: Can I customise the alert threshold? Yes, alert thresholds are configurable per profile in the Alert Rules tab. Adjust to match your business baseline rather than relying on the generic default.

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Tracked live in Vortex IQ Nerve Centre

Late Dispatch Rate is one of hundreds of KPI pulses Vortex IQ tracks across Walmart Marketplace 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.

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