The ShipSherlock Blog
Carrier billing tactics, recovery strategies, and real talk about the money sitting in your shipping invoices.
A plain-language walkthrough for Canadian sellers on reading a UPS invoice line by line, decoding the surcharge codes, and spotting the charges worth disputing.
Cost RecoveryFuel surcharges quietly add a big percentage to every Canadian parcel. Here is how a fuel surcharge audit works and how to recover the amounts your carrier billed in error.
Cost RecoveryCarriers add an address correction fee of around 25 dollars per package, often when nothing was wrong with your address. Here is what triggers these surcharges in Canada and how to claim them back.
Carrier GuidesPurolator quietly cut its on-time delivery guarantee in 2026. Here is what the new 50 percent refund rule means for Canadian shippers, the claim deadline that trips most people up, and how to catch every eligible shipment.
Cost RecoveryThe best-known parcel audit tools only cover FedEx and UPS. If you ship Canada Post or Purolator, half your invoice never gets checked. Here is what a Canadian shipping audit should actually catch.
Carrier GuidesCanada Post and Purolator both promise on-time delivery, but the refunds, deadlines, and fine print are very different in 2026. Here is a side-by-side look so you know what each carrier really owes you when a package runs late.
Cost RecoveryDimensional weight pricing is one of the most common sources of shipping overcharges for Canadian sellers. Here's how it works, how carriers calculate it, and what you can do about it.
Carrier GuidesFedEx owes you a refund when packages arrive late in Canada. Here's how the Money-Back Guarantee works, which services qualify, and why most businesses never collect.
Cost RecoveryIs a shipping audit service worth it? Here's an honest look at what Canadian e-commerce sellers can realistically expect to recover from carrier billing errors.
Platform TipsCanadian WooCommerce store owners are overpaying on shipping. Here are 7 practical ways to cut your costs, from packaging changes to automated invoice auditing.
Carrier GuidesCanada Post owes you money when deliveries arrive late. Learn which services qualify for a refund under the service guarantee, how to file a claim manually, and how to automate the process.
Cost RecoveryCanadian sellers lose thousands to shipping billing errors they never catch. Here are the 5 most common overcharge types from UPS, FedEx, Canada Post, and Purolator — and how to spot them.
Platform TipsShopify merchants lose thousands per year to shipping overcharges they never catch. Learn how to audit your carrier invoices and recover money from UPS, FedEx, Canada Post, and Purolator.
Carrier GuidesUPS owes you a full refund for every late delivery. Learn how GSR claims work, the 15-day deadline, and how to automate recovery for your Canadian e-commerce business.
Cost RecoveryMost Canadian e-commerce businesses overpay on shipping without realizing it. Here are the 5 most common billing errors from UPS, FedEx, and Canada Post — and how to catch them.
Carrier GuidesCanada Post billing errors are harder to catch than UPS or FedEx. Learn the most common Canada Post overcharges, how to dispute them, and the unique challenges of auditing Canada Post invoices.
ShipSherlock audits every invoice automatically. You pay nothing unless we find money your carrier owes you.
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