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Canada Post API Integration Services
We integrate the Canada Post web services into your storefront, WMS, OMS or ERP such as SYSPRO, Epicor Prophet 21 or NetSuite. Rating, contract and non-contract shipping, labels, manifests, tracking and returns, on their own or inside a multi-carrier shipping platform we build for you.
Get Started- Rating
- Contract Shipping
- Non-Contract Shipping
- Labels + Manifests
- Tracking
- Returns
What We Build
Rating
Request rates and expected delivery dates for Regular Parcel, Expedited Parcel, Xpresspost, Priority and international services, using your contract customer number where you have one so the results match your account rates.
Contract Shipping
For contract customers: create shipments and labels, group them into a transmit at end of day, and retrieve the manifest that Canada Post uses for pickup and billing.
Non-Contract Shipping
For businesses without a contract: create shipments and labels paid by the credit card on the Canada Post account, with no manifest step required.
Tracking
Pull tracking summaries and scan events into your order system, including expected delivery date and delivery confirmation, and notify customers from your own systems.
Returns
Generate authorised return labels for specific orders, or open return templates for recurring return flows, tied back to the original order.
International and Options
Customs data for USA and international services, plus shipment options such as signature, coverage, card for pickup or deliver to post office, validated against what each service allows.
How We Build Your Integration
Discovery
We confirm whether you ship under a Canada Post contract or as a non-contract customer, which services you use, and where shipment data needs to go.
Architecture
We design the XML request mapping, API key handling, manifest timing for contract accounts, and how labels and tracking return to your records.
Development
We build against the Canada Post REST web services, which exchange XML, with validation, readable error mapping and the connectors into your storefront or ERP.
Testing
We test in the Canada Post development environment with domestic, USA, international and return scenarios before switching to production keys.
Launch and Support
We go live with monitoring and follow Canada Post web service version changes so the integration keeps working.
Supported Platforms
We integrate with the platforms your business already uses, ensuring a smooth workflow from checkout to delivery.
Use Cases
Canadian Online Stores
Show Canada Post rates and delivery dates at checkout on Shopify, WooCommerce or a custom store, then create labels on fulfilment and sync tracking back to the order.
ERP and Warehouse Shipping
Create Canada Post shipments from sales orders in SYSPRO, Epicor Prophet 21 or NetSuite, print labels at the packing station, and write tracking numbers and shipping charges back.
Multi-Carrier Canadian Shipping
Rate shop Canada Post against Purolator, UPS or FedEx inside one shipping platform, with rules that pick the carrier by destination, weight and delivery speed.
Returns Programmes
Offer self-serve returns with Canada Post return labels issued from your portal or ERP, and track the return back to the warehouse.
Why Choose ZyroByte
Canadian Shipping Experience
We know the contract versus non-contract split, manifests and Canadian address rules that trip up generic integrations.
Connected to Your Systems
Canada Post wired into your ERP, WMS, OMS and storefront so shipment data flows without re-keying.
Correct Web Service Versions
Requests use the right versioned XML media types for each Canada Post service, which avoids silent failures when versions change.
Reliable Operation
Retries, timeouts and clear error handling so a Canada Post outage does not stop your warehouse.
Ongoing Maintenance
We keep the integration current with Canada Post service and version changes.
Secure Credentials
API keys and customer numbers stored encrypted server-side, never in client code.
Contract vs Non-Contract Canada Post Shipping
Canada Post offers two shipping web services. Contract Shipping is for businesses with a Canada Post agreement: shipments are created, transmitted at end of day and billed to the account through a manifest. Non-Contract Shipping is for businesses without an agreement: each shipment is paid by credit card on the account and no manifest is needed. We build for the model you use and can support both in one integration.
Canada Post Integration for Shopify and WooCommerce
We build Canada Post rating into Shopify through a carrier-calculated rates app, or into WooCommerce as a custom shipping method, and add label creation and tracking sync on fulfilment. Rates come from your own Canada Post account so checkout matches what you are billed.
Canada Post Integration for ERPs
We connect Canada Post to SYSPRO, Epicor Prophet 21, NetSuite and custom order systems so shipments are created from orders, labels print on the warehouse printer, manifests are transmitted on schedule, and tracking returns to the ERP automatically.
Canada Post Inside a Multi-Carrier Platform
If you ship with more than one carrier, we can build a complete shipping platform that rates Canada Post alongside Purolator, UPS, FedEx or an aggregator such as Flagship, and manages labels, tracking and returns in one place.