Real-time
Two-way sync
Changes in Coupa or Infor M3 instantly reflect in both systems. No stale data, no manual imports.
Accounting and finance ⇄ ERP
Coupa to Infor M3 integration — real-time, two-way sync
Keep Coupa and Infor M3 in sync without custom scripts. Cut weeks of integration work, eliminate silent data drift, and give your team a single, reliable source of truth.
- SOC 2 and 6 other compliance frameworks
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Adopted by fast-scaling companies moving mission-critical data in real time
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Why teams connect Coupa and Infor M3
Keep Coupa and Infor M3 agreeing on customers, invoices, and balances, whether they split the finance workload or one is replacing the other.
A dedicated finance tool and an ERP end up side by side for practical reasons: a subsidiary runs lighter software than headquarters, billing runs in a specialist system while the enterprise system holds the wider view, or the company is mid-migration and both are live. Whatever the split, the two systems describe overlapping customers and transactions, and that overlap drifts without a live connection.
Stacksync syncs Accounts, Contracts, Expense Reports, Requisitions in Coupa with Purchase Orders, Manufacturing Orders, Inventory Balances, Invoices in Infor M3 in real time and in both directions. You decide which system wins on which field, and every change made in one is reflected in the other within seconds instead of at the next batch run.
Common use cases
- 01 Provision and update Users in Coupa from an HRIS or identity provider as employees join, change roles, or leave.
- 02 Mirror Purchase Orders and their status into an operational Postgres database for spend reporting and three-way match analytics.
- 03 Push orders captured in a CRM into M3 as customer orders without manual re-entry
- 04 Mirror M3 customers and invoices into a CRM or warehouse so sales and finance share one AR view
Common sync patterns
Where Coupa handles billing: invoices land in Infor M3
Invoices and payment activity from the billing side post through to the enterprise system automatically.
Migration without a hard cutover
When one system is replacing the other, run both in parallel with records matching until the switch is complete.
One customer and vendor master
Where both systems keep records of the same organizations, corrections made in either propagate to the other.
What you can sync between Coupa and Infor M3
Representative objects on each side — any object or custom field can map to any target. Schemas are auto-detected; types are converted between the two systems.
| Coupa objects | Infor M3 objects | How this pairing syncs | |
|---|---|---|---|
| Purchase Orders PO headers and lines; synced two-way with ERPs so orders raised in Coupa flow to the ledger and status updates flow back on the /purchase_orders resource. | Purchase Orders PO headers and lines sync outward so buyers and receiving teams see the same demand. | Same entity on both sides — records pair one-to-one and field-level changes reconcile in both directions. | |
| Invoices Supplier/AP invoices with lines and approval status; polled out to accounting and ERP systems for the pay cycle, or created through the API. | Invoices Billing documents flow to finance and CRM tools for AR visibility. | Same entity on both sides — records pair one-to-one and field-level changes reconcile in both directions. | |
| Suppliers Supplier master records; kept aligned with an ERP vendor master and onboarding tools, synced two-way on the /suppliers resource. | Suppliers Supplier records align procurement tools with the vendors M3 purchases from. | Same entity on both sides — records pair one-to-one and field-level changes reconcile in both directions. | |
| Contracts Supplier contract records with terms and dates; read out for reporting or created from a CLM system. | Warehouses Warehouse and facility records scope inventory and order data during mapping. | Contracts is specific to Coupa and Warehouses to Infor M3 — each maps to any object or custom field on the other side. | |
| Expense Reports Employee expense reports and their lines; exported to AP or ERP for reimbursement and GL posting. | Price Lists Pricing data keeps quoting tools consistent with the prices M3 will actually invoice. | Expense Reports is specific to Coupa and Price Lists to Infor M3 — each maps to any object or custom field on the other side. | |
| Requisitions Employee purchase requests with lines and approval chains; read out to warehouses, or created via the API from upstream intake tools. | Items Item master records provide the SKU, unit, and attribute data other systems price and sell against. | Requisitions is specific to Coupa and Items to Infor M3 — each maps to any object or custom field on the other side. |
How changes propagate between Coupa and Infor M3
Each direction of the sync is driven by what the source system can signal and what the destination accepts — detection, delivery, and expected latency below.
Coupa Infor M3 Interval-based propagation
DetectionStacksync polls Coupa for changes on an incremental schedule, reading only records changed since the previous pass. Polling on updated-at and created-at filters (e.g.
DeliveryEach detected change is written to Infor M3 through its API, with automatic retries and rate-limit backoff.
Infor M3 Coupa Sub-second propagation
DetectionInfor M3 notifies Stacksync of record changes through webhook events. Event publishing through Infor ION (Business Object Documents), configured in ION, or scheduled polling of API endpoints.
DeliveryEach detected change is written to Coupa through its API, with automatic retries and rate-limit backoff.
Rate-limit considerations
- Coupa: Coupa does not publish explicit rate limits or expose X-RateLimit/Retry-After headers; integrations page 50 records at a time and back off on 429/503 responses.
- Infor M3: Subject to Infor ION API gateway throttling policies.
What ships with Coupa ⇄ Infor M3
Connect Coupa and Infor M3 for flexible, real-time data sync.
Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Coupa–Infor M3 connection.
No-code + pro-code
Workflow automation
Trigger automated workflows whenever Coupa or Infor M3 data changes, update records, fire webhooks, or kick off sequences without brittle API scripts.
At scale
Event queues
Handle millions of events per minute without losing a single Coupa or Infor M3 record.
Observability
Monitoring
Track your Coupa ⇄ Infor M3 sync health, view errors, and replay failed events in one click.
Trading partners
EDI
Transform legacy EDI complexity into simple database interactions between Coupa and Infor M3.
How the Coupa and Infor M3 connectors work
Coupa
- Integration surface
- REST Core API (JSON or XML)
- Authentication
- OAuth 2.0 / OIDC via the client-credentials grant; scopes take the service.object.right form (e.g. core.accounting.read, core.accounting.write). Legacy API keys are being retired (no new keys since R34; API-key auth unsupported from R36). Access tokens last 24 hours.
- Change detection
- Polling on updated-at and created-at filters (e.g. updated-at[gt]=<timestamp>); Coupa has no native webhook subscriptions, though admins can configure outbound Call Out / external notifications.
- Capabilities
- read · write
- Rate limits
- Coupa does not publish explicit rate limits or expose X-RateLimit/Retry-After headers; integrations page 50 records at a time and back off on 429/503 responses.
Infor M3
- Integration surface
- REST API (M3 API programs exposed through the Infor ION API gateway)
- Authentication
- OAuth 2.0 via Infor OS / ION API authorization
- Change detection
- Event publishing through Infor ION (Business Object Documents), configured in ION, or scheduled polling of API endpoints
- Capabilities
- read · write · webhooks
- Rate limits
- Subject to Infor ION API gateway throttling policies
How it works
How to connect Coupa to Infor M3 — three steps, no code
Configure and sync within minutes, no code. Whether you sync 50k or 100M+ records, Stacksync handles the queues, infra, and plumbing. Integrations are non-invasive and need zero setup on your systems.
- 01
Connect your apps
Authenticate Coupa and Infor M3 with each platform's native method — OAuth, API keys, or service accounts — plus secure options like SSH tunneling, IP whitelisting, and VPC peering.
Coupa
connected
Infor M3
connected
OAuth 2.0SSH tunnelSSL certificateVPC peering - 02
Choose tables
Pick the Coupa and Infor M3 objects to sync — Stacksync auto-detects both schemas, including custom fields where the platform exposes them. Sync to existing tables, or let Stacksync create new ones with ideal data types.
objects · Coupa ⇄ Infor M3Customers 12,480Sales Orders 8,213Invoices 5,902Items 1,344 - 03
Map fields
Fields map automatically even when names and types differ. Stacksync handles transformation and type casting for you, zero configuration required.
Coupa Infor M3Company company_name textEmail email textAmount amount numericCreated created_at timestamp
FAQ
Coupa and Infor M3 integration FAQ
-
Yes. Stacksync provides a managed, real-time two-way integration between Coupa and Infor M3: authenticate both systems, choose the objects to sync (such as Coupa's Purchase Orders and Invoices), map fields visually, and changes propagate both ways in milliseconds — no code required.
-
Coupa: REST Core API (JSON or XML). Authentication: OAuth 2.0 / OIDC via the client-credentials grant; scopes take the service.object.right form (e.g. core.accounting.read, core.accounting.write). Legacy API keys are being retired (no new keys since R34; API-key auth unsupported from R36). Access tokens last 24 hours. Infor M3: REST API (M3 API programs exposed through the Infor ION API gateway). Authentication: OAuth 2.0 via Infor OS / ION API authorization. Stacksync manages authentication, retries, and rate limits on both sides.
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Coupa: Some objects are read-mostly and specific fields lock once a document is approved (e.g. approved invoices), so writes must respect Coupa's document lifecycle. Infor M3: Most M3 records are scoped by a company, division, facility, and warehouse hierarchy, which integration mappings need to carry explicitly. Stacksync's field mapping accounts for these differences between Coupa and Infor M3 without custom code.
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Stacksync is SOC 2 Type II and ISO 27001 certified with HIPAA BAA support. Data is encrypted in transit, and a zero-persistent-storage architecture means Coupa and Infor M3 records are not retained after a sync operation.
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Stacksync pricing is usage-based and starts at $1,000/month, including the managed Coupa and Infor M3 connectors, real-time two-way sync, monitoring, and support. That replaces building and maintaining a custom Coupa–Infor M3 integration in-house.
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Yes — Stacksync ships production-grade connectors for both Coupa and Infor M3. The connectors handle authentication, schema detection, rate limits, and retries; you configure the sync, and Stacksync operates it.
SECURITY
Security teams trust Stacksync
As a data company, we understand the importance of keeping your data secure. Stacksync is built with security best practices to keep your data safe at every layer, and is DPF-certified for US, EU, UK and CH data transfers.
SOC 2 Type II
ISO 27001
HIPAA BAA
GDPR
CCPA
CSA STAR
DPF US-EU-UK-CH
→ SECURITY WITH BENEFITS
SSO & SCIM
Let your users access Stacksync from your centralized user management systems. Works with Okta, Azure, Google SSO and more.
Alerts
Immediately get alerted about record syncing issues over email, Slack, PagerDuty and WhatsApp. Resolve issues from a centralized dashboard with retry and revert options.
Secure connection options
Securely connects to your systems with:
Related integrations
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