EDI, B2B portal or API: which channel for which orders?

Choose the channel based on the customer

The right channel depends on the customer's profile, volume and technical resources. The table below helps frame the conversation.

The channel is often dictated by the customer rather than chosen by the supplier. A retail chain may make EDI a condition for listing your products. Get their implementation guides before you commit to a timeline.

What an EDI project really involves

Every trading partner publishes its own requirements: standard version, mandatory segments, codes. GS1 Canada notes that Canadian industry guidelines based on X12 exist for sectors including grocery, foodservice, retail pharmacy and healthcare.

Mapping is often the bulk of the work: the partner's item codes, your internal SKUs, order units and coded ship-to locations. A mapping error produces a wrongly picked order, even when the EDI document is technically valid.

Plan testing with each partner and read their terms: some charge fees when a document is missing, late or non-compliant. Exchanges may also run through a provider that translates and routes documents; define its role and cost up front.

When a portal is enough, and how to extend it

For most customers without integration resources, the portal remains the simplest channel. It becomes more efficient with quick order by SKU, reorder, and account-specific pricing and availability.

File upload bridges the gap for customers who build orders in a spreadsheet. Provide a template, validate every line and show clear error messages: unknown SKU, quantity not in a valid multiple, product not authorized.

Open an API to customers who are set up for it

An API appeals to customers with procurement software, marketplaces and integrators. Define what's exposed: catalogue and pricing lookups, order creation, order status, shipments and invoices.

Security has to be designed per customer: separate authentication for each, access limited to their own pricing and orders, rate limits, a test environment and a documented versioning policy.

Finally, spell out responsibilities. Who supports the customer's developer? Who monitors errors? How is the customer notified when the API changes?

Run every channel without duplicating rules

The key principle: one engine applies pricing, availability, credit and approvals; channels are just entry points. Every channel that maintains its own rules becomes a source of discrepancies.

• The same price list, whatever the channel.
• The same credit checks and order limits.
• A single product catalogue with centrally managed mappings.
• Shared order numbering and history.
• The same statuses sent back to the customer, whether by EDI, API or in the portal.

Also decide how approvals apply. An EDI order from a chain has already been approved in their system, but your own internal checks, such as credit, still apply.

Monitor errors and acknowledgments

Every channel produces errors: unknown SKU, price that doesn't match the contract, invalid address. Assign someone to handle them and define the expected response: an EDI acknowledgment, an API error message or a portal notification.

Regularly reconcile orders received against orders accepted, channel by channel. That check catches a stuck order even when an alert was missed.

Your decision grid

You choose a channel customer by customer, but the rules behind it should be the same for everyone.

Your decision list

• Segment customers by profile, volume and technical capacity.
• List the customers that require EDI and get their implementation guides.
• Define the file upload template and its validations.
• Set the API's scope, security and support.
• Centralize pricing, credit, SKUs and statuses in one engine.
• Assign error handling and reconciliation by channel.

Where Shopflow fits

Shopflow's B2B Engine page lists sales rep ordering and EDI/CSV upload among its B2B channels, connected to a shared engine: customer-specific pricing, private catalogues, approvals and credit management. The Headless Commerce and API Documentation pages describe API access. The site doesn't detail support for your partners' specific EDI transaction sets or an EDI network service: ask which formats are accepted, how documents are translated and whether an EDI provider would be involved.