Finance & ERP · Integration
Acumatica
Add Acumatica to your product for your customers, and give your AI agents governed access to it.
Embed an Acumatica integration so your customers can work their financial and order records from inside your product, and so your agents can read that data under per-tenant governance. fastn handles each customer's authentication, custom-field mapping, and API upkeep, so ERP support does not become a per-customer integration project.
In your product
Embedded for your customers. Per-tenant auth, no per-customer code, maintained by fastn.
Let customers read and create invoices, orders, and bills from your product.
Sync customers, vendors, and items so records do not have to be re-entered.
Read ledger and account structures per customer for reporting inside your product.
Trigger your product when a document is approved, posted, or paid.
For your AI agents
Governed, audited access for the agents you build, through the MCP server.
An agent reads open invoices and payment status before answering a billing question.
An agent creates a document within governed permissions and routes it for approval.
An agent reacts to a posted transaction and updates the downstream record.
Example prompt
List invoices over 30 days past due for this customer and total the outstanding amount.
Set up Acumatica in 4 steps
- 01Open the Acumatica connector from your fastn dashboard.
- 02Have each customer authenticate their Acumatica instance.
- 03Map the invoice, order, and account 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 Acumatica integration
What you get by embedding it with fastn instead of building it yourself.
- Ship an Acumatica integration without building it. Your customers connect their own Acumatica 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 an Acumatica update is not your on-call problem.
- One integration serves your product and your agents. The same governed Acumatica 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
QuickBooksWorks well with
SalesforceOften used alongside
Tools the same teams tend to run next to Acumatica, across other categories.
Shopify
Stripe
BigCommerce
AfterShipAcumatica integration FAQ
How do I add an Acumatica integration to my product?
Enable the Acumatica connector in your fastn dashboard, then let each customer authenticate their own Acumatica account. fastn handles the OAuth flow, token storage and refresh per tenant, so there is no Acumatica client code in your app and no per-customer branch in your codebase. Setup is 4 steps.
Do my customers each connect their own Acumatica account?
Yes. Every connection is scoped to the individual customer, so each authorises their own Acumatica 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 Acumatica 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 invoices and payment status before answering a billing question.
Who maintains the Acumatica integration?
fastn does. When Acumatica 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 Acumatica 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 Acumatica 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 Acumatica integration?
A common starting point: read and create invoices, orders, and bills from your product. 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 Acumatica integration cost?
It is included. Pricing is based on connected accounts, not on how many connectors you enable, so adding Acumatica does not change your per-connector cost. You can start free with 3 connected accounts.
Add Acumatica to your product
Start free with 3 connected accounts. No sales call required, and no per-customer integration code.