What you do
Create an API account in your BigCommerce control panel and pass over the store hash and access token.
BigCommerce Fulfillment: What the API Account Actually Is
Two credentials, generated once, and the store never has to change.
A Store Hash and an Access Token, and That Is the Ask
BigCommerce authenticates API requests with two things: the store hash that identifies your store, and an access token sent in an X-Auth-Token header. Both come from an API account you create in your own control panel, which means you grant access without handing over a login and you can revoke it without changing a password.
No shared logins
An API account is not a user account. Nobody is logging in as you, and nothing breaks when your staff changes.Scoped, not total
API accounts carry specific scopes. A fulfillment integration needs order and product access, not your customer or payment data.Revocable in one click
Ending a relationship with a provider means deleting a token, not auditing who still has your password.Stable across theme and catalogue changes
The connection is to the store’s data, not its front end, so a redesign does not touch it.
Why that shape matters:
Connecting BigCommerce to OC3PL
Generate the credentials once. Live the same business day.
What OC3PL does
Mapping, SKU matching, test orders and go-live, connecting straight to the warehouse management system.
What flows in
Orders, with their line items and shipping addresses, as they are placed.
What flows back
Fulfillment status, tracking numbers and inventory levels, so the storefront reflects what is actually on the shelf.
BigCommerce Fulfillment Questions
API account credentials from your BigCommerce control panel: the store hash that identifies your store, and an access token. BigCommerce sends the token in an X-Auth-Token header on API requests. The connection runs directly to the OC3PL warehouse management system and is live the same business day.
No. An API account is separate from a user account, so access is granted through credentials rather than a shared login. Those credentials are scoped to specific resources and can be revoked without changing anyone’s password, which is why it is the right way to connect a fulfillment provider.
No. The integration connects to your store’s order and product data, not its front end, so a theme change or redesign does not affect it. What changes is that orders leave for the warehouse automatically and tracking comes back without anyone exporting anything.
Related Reading
The detail behind this, in OC3PL’s own guides.
BigCommerce Fulfillment Integration
How OC3PL connects to BigCommerce — a direct warehouse management system link, what connecting requires, and how long it takes to go live.
How OC3PL Integrations Work | WMS, API Keys and Go-Live
What connecting a store to OC3PL actually involves: one warehouse management system, an API key or app install from you, and mapping, SKU matching and test orders from us.
Switching Your 3PL Integration Without Downtime
How to move your store’s fulfillment connection to a new 3PL without losing orders: the test sequence, what to run in parallel, and what to confirm before you cut over.
Why API Flexibility Matters in a Fulfillment Partner
Discover why a flexible API is critical for scaling e-commerce brands. Learn how custom API support from a 3PL solves complex fulfillment challenges.
How to Fix 3PL API Syncing Issues
Experiencing 3PL Shopify integration problems? Learn how to diagnose and fix common 3PL syncing issues related to APIs, data, and rate limits.
How to Integrate Your eCommerce Store with 3PL
A step-by-step guide to integrating Shopify, WooCommerce, or Amazon FBA with your fulfillment partner for seamless, scalable operations.
Connect BigCommerce
Tell us your order volume and we will confirm exactly which credentials the connection needs.