Finance & ERP · Integration
Coupa
Add Coupa to your product for your customers, and give your AI agents governed access to it.
Embed a Coupa integration so your customers can work their own requisitions, purchase orders, invoices, suppliers, and approvals from inside your product, with governed agent access to the same records. Spend writes are idempotent, so a retry after a timeout does not raise the same purchase order twice, and every call is logged per tenant so a document can be traced to the event that created it. fastn handles per-customer authorisation and API upkeep, so a new Coupa instance is configuration rather than a release.
In your product
Embedded for your customers. Per-tenant auth, no per-customer code, maintained by fastn.
Let customers read their own purchase orders and invoices into your product, mapped to their own coding and fields.
Create a requisition or purchase order from your product when a request is approved, without hand-keying it.
Read supplier records so your product validates against the vendors a customer actually buys from.
Trigger your product when an invoice is approved, a purchase order changes, or an approval is pending.
For your AI agents
Governed, audited access for the agents you build, through the MCP server.
An agent reads open purchase orders and invoice status before answering a spend question.
An agent raises a requisition within governed permissions, with the write idempotent and audited.
An agent reacts to a stuck approval and notifies the approver's team.
Example prompt
List invoices pending approval for more than five days and show the purchase order each is matched to.
Set up Coupa in 4 steps
- 01Open the Coupa connector from your fastn dashboard.
- 02Have each customer authenticate their own Coupa instance.
- 03Map the requisition, purchase order, and invoice fields your product uses, then enable actions and triggers.
- 04Call them from your product, or expose them to an agent through the MCP server.
Why teams use the Coupa integration
What you get by embedding it with fastn instead of building it yourself.
- Ship a Coupa integration without building it. Your customers connect their own Coupa account inside your product and work their invoices, payments and vendors there, with no per-customer code on your side.
- Handle the part that actually costs time: financial writes must be idempotent and reconcilable, because a duplicate is an accounting problem rather than a bug. fastn owns the auth, token refresh, rate limits, pagination and breaking-change fixes, so a Coupa update is not your on-call problem.
- One integration serves your product and your agents. The same governed Coupa connection powers in-product features and gives AI agents scoped, audited access, so you move financial records without hand-keying them between systems without wiring it twice.
Used by these teams
Compare with
NetSuite
SAP
Oracle ERP CloudOften used alongside
Tools the same teams tend to run next to Coupa, across other categories.
Shopify
Stripe
BigCommerce
AfterShipCoupa integration FAQ
How do I add a Coupa integration to my product?
Enable the Coupa connector in your fastn dashboard, then let each customer authenticate their own Coupa account. fastn handles the OAuth flow, token storage and refresh per tenant, so there is no Coupa client code in your app and no per-customer branch in your codebase. Setup is 4 steps.
Do my customers each connect their own Coupa account?
Yes. Every connection is scoped to the individual customer, so each authorises their own Coupa account and only ever sees their own invoices, payments and vendors. That per-tenant isolation is the point of an embedded integration: you support the long tail of customer setups without maintaining an integration per customer.
Can AI agents use this Coupa integration?
Yes. The same connection is exposed to your agents through the fastn MCP gateway, with permissions scoped per tenant and every call audited. An agent reads open purchase orders and invoice status before answering a spend question.
Who maintains the Coupa integration?
fastn does. When Coupa changes an endpoint, deprecates a field or alters its auth, the fix lands in the connector rather than in your backlog, and your customers' connections keep working.
Is the Coupa integration safe for financial writes?
Writes are idempotent, so a retry after a timeout does not post a document twice, and every call is logged per tenant so an entry can be traced back to the event that created it. That matters more in finance than anywhere else, because a duplicate is a number somebody has to explain.
Can it handle each customer's own chart of accounts?
Yes. ERP deployments are configured to the business, so account structures, required fields and fiscal calendars differ per customer. Those are mapped per tenant as configuration, not hard-coded.
What about Coupa rate limits during a first import?
Backfills are throttled deliberately. ERP limits are often account-wide rather than per-integration, so an unthrottled import can exhaust a customer's allowance and disrupt their other integrations.
What can I build with the Coupa integration?
A common starting point: read their own purchase orders and invoices into your product, mapped to their own coding and fields. Teams also use it for the other use cases listed above, and expose it to agents for governed reads and writes.
How much does the Coupa integration cost?
It is included. Pricing is based on connected accounts, not on how many connectors you enable, so adding Coupa does not change your per-connector cost. You can start free with 3 connected accounts.
Add Coupa to your product
Start free with 3 connected accounts. No sales call required, and no per-customer integration code.