Real-time
Two-way sync
Changes in Epicor ERP or SAP S/4HANA instantly reflect in both systems. No stale data, no manual imports.
ERP
Epicor ERP to SAP S/4HANA integration — real-time, two-way sync
Keep Epicor ERP and SAP S/4HANA 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 Epicor ERP and SAP S/4HANA
Two ERPs, one set of facts: Stacksync keeps Epicor ERP and SAP S/4HANA consistent in real time, whether they split the business or one is replacing the other.
Companies run two ERPs for structural reasons: a two-tier setup with subsidiaries on lighter systems, an acquisition that brought its own stack, a split by function or region, or a migration that will take quarters. In all of these, some of the same organizations, people, and transactions exist in both systems, and keeping them aligned by hand is a standing tax on the back office.
Stacksync syncs Customers, Suppliers, Parts, Sales orders in Epicor ERP with Production Orders, Business Partners, Sales Orders, Purchase Orders in SAP S/4HANA bi-directionally and in real time, with field-level mapping across the two data models and conflict rules you define. A record changed in either system is reflected in the other within seconds, not at the next interface run.
Common use cases
- 01 Sync Epicor customers and AR invoices into a CRM so sales sees order history and credit status without ERP logins.
- 02 Push won opportunities from the CRM into Epicor as sales orders and sync order status back.
- 03 Push closed-won CRM opportunities into S/4HANA as sales orders without manual re-keying.
- 04 Surface invoice and payment status from S/4HANA inside the CRM so account teams see open balances.
Common sync patterns
Split by function
Where one system is the people or finance suite and the other runs operations, the records both sides depend on, such as organizations, cost centers, and reference data, stay in agreement.
Two-tier roll-up
Where subsidiaries run one system and headquarters runs the other, shared records and transactions flow up continuously, so consolidation starts from live data.
Migration in parallel
When one system is replacing the other, run both fully live during the transition and cut over without a data freeze.
What you can sync between Epicor ERP and SAP S/4HANA
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.
| Epicor ERP objects | SAP S/4HANA objects | How this pairing syncs | |
|---|---|---|---|
| Sales orders Created from won CRM opportunities; status and line changes sync back out. | Sales Orders Order headers and line items synced to CRMs and fulfillment systems as they are created or amended. | Same entity on both sides — records pair one-to-one and field-level changes reconcile in both directions. | |
| Purchase orders Synced with procurement systems and matched against receipts. | Purchase Orders Procurement documents shared with supplier portals and spend-management tools. | Same entity on both sides — records pair one-to-one and field-level changes reconcile in both directions. | |
| AR invoices Billing records surfaced in CRM or finance tools for collections visibility. | Business Partners Unified customer and supplier master records, the anchor entity for CRM-to-ERP account syncs. | AR invoices is specific to Epicor ERP and Business Partners to SAP S/4HANA — each maps to any object or custom field on the other side. | |
| Shipments Fulfillment confirmations synced to customer portals and commerce systems. | Products / Materials Material master data distributed to e-commerce, PIM, and CRM catalogs. | Shipments is specific to Epicor ERP and Products / Materials to SAP S/4HANA — each maps to any object or custom field on the other side. | |
| Bills of materials Methods of manufacturing read for costing and planning integrations. | Billing Documents (Invoices) Invoice data pushed to CRMs and payment or collections tools for finance visibility. | Bills of materials is specific to Epicor ERP and Billing Documents (Invoices) to SAP S/4HANA — each maps to any object or custom field on the other side. | |
| Customers Master records synced with CRM accounts so sales and the ERP agree on ownership and credit status. | Deliveries Outbound delivery status synced to customer-facing systems for order tracking. | Customers is specific to Epicor ERP and Deliveries to SAP S/4HANA — each maps to any object or custom field on the other side. |
How changes propagate between Epicor ERP and SAP S/4HANA
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.
Epicor ERP SAP S/4HANA Interval-based propagation
DetectionStacksync polls Epicor ERP for changes on an incremental schedule, reading only records changed since the previous pass. Polling on change-date fields.
DeliveryEach detected change is written to SAP S/4HANA through its API, with automatic retries and rate-limit backoff.
SAP S/4HANA Epicor ERP Interval-based propagation
DetectionStacksync polls SAP S/4HANA for changes on an incremental schedule, reading only records changed since the previous pass. Polling on change timestamps exposed by the OData services.
DeliveryEach detected change is written to Epicor ERP through its API, with automatic retries and rate-limit backoff.
Rate-limit considerations
- Epicor ERP: Subject to the platform's API rate limits and per-tenant throttling on Kinetic cloud deployments.
- SAP S/4HANA: Subject to the platform's API rate limits, which vary by edition and communication arrangement.
What ships with Epicor ERP ⇄ SAP S/4HANA
Connect Epicor ERP and SAP S/4HANA for flexible, real-time data sync.
Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Epicor ERP–SAP S/4HANA connection.
No-code + pro-code
Workflow automation
Trigger automated workflows whenever Epicor ERP or SAP S/4HANA 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 Epicor ERP or SAP S/4HANA record.
Observability
Monitoring
Track your Epicor ERP ⇄ SAP S/4HANA sync health, view errors, and replay failed events in one click.
Trading partners
EDI
Transform legacy EDI complexity into simple database interactions between Epicor ERP and SAP S/4HANA.
How the Epicor ERP and SAP S/4HANA connectors work
Epicor ERP
- Integration surface
- REST API (OData) over Epicor business objects, plus BAQ (Business Activity Query) endpoints
- Authentication
- API key combined with basic or token authentication, depending on version and deployment
- Change detection
- Polling on change-date fields; outbound calls can be wired through BPM directives, but there is no standard webhook subscription surface
- Capabilities
- read · write
- Rate limits
- Subject to the platform's API rate limits and per-tenant throttling on Kinetic cloud deployments
SAP S/4HANA
- Integration surface
- OData REST APIs (v2/v4), with SOAP, BAPI/RFC, and IDoc interfaces on on-premise editions
- Authentication
- OAuth 2.0 with communication arrangements on cloud editions; basic auth or certificate-based on-premise
- Change detection
- Polling on change timestamps exposed by the OData services; business events can be emitted through SAP's event infrastructure on cloud editions
- Capabilities
- read · write
- Rate limits
- Subject to the platform's API rate limits, which vary by edition and communication arrangement
How it works
How to connect Epicor ERP to SAP S/4HANA — 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 Epicor ERP and SAP S/4HANA with each platform's native method — OAuth, API keys, or service accounts — plus secure options like SSH tunneling, IP whitelisting, and VPC peering.
Epicor ERP
connected
SAP S/4HANA
connected
OAuth 2.0SSH tunnelSSL certificateVPC peering - 02
Choose tables
Pick the Epicor ERP and SAP S/4HANA 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 · Epicor ERP ⇄ SAP S/4HANACustomers 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.
Epicor ERP SAP S/4HANACompany company_name textEmail email textAmount amount numericCreated created_at timestamp
FAQ
Epicor ERP and SAP S/4HANA integration FAQ
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Yes. Stacksync provides a managed, real-time two-way integration between Epicor ERP and SAP S/4HANA: authenticate both systems, choose the objects to sync (such as Epicor ERP's Sales orders and Purchase orders), map fields visually, and changes propagate both ways in milliseconds — no code required.
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Epicor ERP: BAQs (Business Activity Queries) can be exposed as read endpoints, letting integrations query joined ERP data without composing multiple object calls. SAP S/4HANA: The Business Partner model consolidates what older SAP systems split into separate customer and vendor masters. Stacksync's field mapping accounts for these differences between Epicor ERP and SAP S/4HANA 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 Epicor ERP and SAP S/4HANA 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 Epicor ERP and SAP S/4HANA connectors, real-time two-way sync, monitoring, and support. That replaces building and maintaining a custom Epicor ERP–SAP S/4HANA integration in-house.
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Yes — Stacksync ships production-grade connectors for both Epicor ERP and SAP S/4HANA. The connectors handle authentication, schema detection, rate limits, and retries; you configure the sync, and Stacksync operates it.
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Change detection on Epicor ERP: Polling on change-date fields; outbound calls can be wired through BPM directives, but there is no standard webhook subscription surface. On SAP S/4HANA: Polling on change timestamps exposed by the OData services; business events can be emitted through SAP's event infrastructure on cloud editions. Each detected change propagates to the other side in milliseconds, with field-level conflict resolution and an inspectable event log.
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
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
Every pair below is a real-time, two-way sync. Search all 513 integrations available for Epicor ERP and SAP S/4HANA.
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