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Metrics type: Key Metrics • Category: Shipping & Courier

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At a glance

Average label cost per Sendle parcel over the last 30 days, compared to the prior 30 days. Sendle’s flat-rate model means cost moves only when (a) Sendle changes published rates, or (b) the merchant’s parcel-mix shifts across zones (more remote, more cross-region, more bulk). There is no rate-shop volatility because there is no rate-shop. The card is more predictable than its multi-carrier peers and the alert here usually has a clean cause.

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Calculation

Calculated automatically from your Sendle data. See the At a glance summary above for what the metric tracks and the worked example below for a typical reading.

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Worked example

The Australian DTC home-goods brand. Reading taken at 09:00 AEDT on 12 Mar 26 for the trailing 30 days vs the prior 30 days. The card reads AUD 8.19; the alert at +10% vsP is a hair under at +9.9%. Five things to notice:
  1. Cost rose because parcel-mix shifted to higher-zone parcels. Metro share dropped 7 percentage points; Remote rose 4 percentage points. Sendle’s per-parcel pricing for Remote is roughly 2.5x Metro; that mix shift alone explains the entire AUD 0.74 increase. No rate change happened.
  2. Why did the mix shift? Two usual causes. (a) Marketing campaign in regional cities (the brand ran a regional-VIC and regional-NSW promotion in February); (b) seasonal customer-base expansion into smaller cities as the brand grew. Either way, the cost rise is the price of growth, not a Sendle issue.
  3. Total spend up 19.8% on 9.1% volume. Half is volume, half is mix. The forecast must split these for clean planning. Aggregate “shipping spend up 20%” without the breakdown produces the wrong board conversation.
  4. The +9.9% trip is informational, not an emergency. Sendle’s pricing has not changed; the rate-shop has no lever to pull (Sendle has none); the only operational responses are: (a) raise checkout shipping fees on regional/remote orders to recover margin, (b) accept the cost as growth investment.
  5. Watch the January annual rate-card update. Sendle typically publishes new rates around 15 to 20 January. When that happens, this card jumps materially (typically +3 to +6 percent) on a single day; the 30D rolling lag means the alert fires by mid-February even with no mix change. Pre-baseline by reading the prior-year comparison.

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Sibling cards merchants should reference together

Avg cost is one number; mix and rate movements behind it are two.

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Reconciling against the vendor’s own dashboard

Where to look in Sendle’s own dashboard: Sendle Dashboard → Reports → Spend Summary. The page exposes the same numbers plus zone breakdown. Closest like-for-like: Last 30 Days, All Services. Sendle also shows a CSV export of every parcel with price, route and zone, useful for outlier analysis. Why our number may legitimately differ from Sendle’s portal: Cross-connector reconciliation:

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Known limitations / merchant FAQs

Why is Sendle so much more cost-stable than ShippyPro or ShipTheory? Single-carrier flat-rate. There is no rate-shop dynamic; the price for a parcel of given weight and zone is published and predictable. Cost moves only on (a) Sendle annual rate-card update, (b) merchant’s parcel-mix shift across zones, (c) extended-cover purchase mix. Multi-carrier orchestrators have all those plus carrier-mix shifts day-to-day, which is the largest source of volatility for them. Sendle just published new rates. When does the card reflect them? Immediately for new bookings. The 30D rolling window means the card’s headline number takes 30 days to fully bake in the new rate; for the first 14 days you see partial blend. Most operators read the change directly from Sendle’s published rate-card announcement, then watch this card as the operational confirmation. Why is my US Sendle cost rising faster than AU? US Sendle is younger (relaunched 2019) and is still scaling capacity; rate-card adjustments tend to track US courier-network costs (USPS-partnered routes) which moved sharply 2022 to 2025. AU Sendle has more stable contracted pricing. If you have multi-region operations, expect more US volatility for the next 1 to 2 years. Why is the alert at +10% specifically? Industry-standard. A 10% month-over-month shipping cost rise is the threshold where finance starts asking questions; below 10% is absorbed in normal forecasting noise. Set tighter (+5%) for thin-margin SKUs; looser (+15%) for high-margin / high-AOV. Customer-side checkout fee, should I raise it when Sendle costs rise? Trade-off question. Most Sendle merchants charge flat shipping fees in checkout (often AUD 9.95 / USD 9.95 or “free over $X”). When Sendle cost rises, the gap eats margin. Options: (1) raise checkout flat fee, (2) raise free-shipping threshold, (3) absorb as growth investment. The card surfaces the cost; the pricing decision is upstream. Extended cover purchasing, does the card show it? Yes, included by default. If you want to see Sendle base price only (without cover), the breakdown is in the per-parcel CSV export from Sendle’s dashboard. Most operators read both; the cover share grew during 2024 to 2025 as merchants started shipping higher-value items. Carbon-neutral surcharge? None. Sendle’s carbon-neutral claim is achieved via offset-purchasing in the back-end and is included in the published rate. There is no opt-in surcharge for carbon-neutral. My oversize parcels are dragging the average up. What can I do? Three actions. (1) Confirm dimensions are accurate at booking; bookings with under-reported dimensions get reweighed and surcharged. (2) For consistently oversize / overweight orders (>25 kg AU, >70 lb US), evaluate whether Sendle is the right service; AU Post Pallet or specialised freight is often more economical. (3) Negotiate a custom rate with Sendle for high-volume oversize SKUs (enterprise tier). How do I forecast next month’s cost? Read this card alongside Cost by Zone and Shipments by Destination. Project parcel volume forward, hold zone mix steady, apply current avg cost. The result is a baseline; adjust for known mix shifts (new market launches, seasonal patterns). The card disagrees with my Sendle monthly invoice. Why? Common reasons. (1) Extended cover inclusion (card includes; some invoice line-items break out). (2) Failed-pickup fees (card excludes; invoice includes). (3) Adjustments / credits (card cannot see them; invoice reflects manual adjustments). Reconciliation gap of <2% is normal.

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Tracked live in Vortex IQ Nerve Centre

Avg Shipping Cost is one of hundreds of KPI pulses Vortex IQ tracks across Sendle 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 or book a demo to see this metric running on your own data.