Two-way sync
Changes in Microsoft 365 or SAP S/4HANA instantly reflect in both systems. No stale data, no manual imports.
Keep Microsoft 365 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.
The ERP holds the records the business is run on, and it is rarely where day-to-day work happens. Microsoft 365 is closer to the work, and the two often need the same facts about the same people, organizations, and transactions. Bridging them by hand, or by nightly file transfer, leaves each side out of date for hours at a time.
Stacksync syncs Teams, Planner & To Do Tasks, Users, Groups in Microsoft 365 with Deliveries, Journal Entries, Customer / Supplier Roles, Production Orders in SAP S/4HANA bi-directionally and in real time, with field-level mapping and rules for which system wins on conflict. Changes made where the work happens reach the system of record within seconds, and the reverse.
Order, invoice, or account status from SAP S/4HANA appears alongside the customer in Microsoft 365, so front-line teams answer from live data.
Payment events sync into SAP S/4HANA as they occur, keeping the enterprise records current without manual entry.
Worker and organization data from SAP S/4HANA stays current in Microsoft 365, so the tools people use daily reflect the org as it actually is.
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.
| Microsoft 365 objects | SAP S/4HANA objects | How this pairing syncs | |
|---|---|---|---|
| Planner & To Do Tasks Task items synced with project and work-management tools. | Billing Documents (Invoices) Invoice data pushed to CRMs and payment or collections tools for finance visibility. | Planner & To Do Tasks is specific to Microsoft 365 and Billing Documents (Invoices) to SAP S/4HANA — each maps to any object or custom field on the other side. | |
| Users Entra ID user accounts synced with HR and identity systems. | Deliveries Outbound delivery status synced to customer-facing systems for order tracking. | Users is specific to Microsoft 365 and Deliveries to SAP S/4HANA — each maps to any object or custom field on the other side. | |
| Groups Microsoft 365 and security groups kept aligned with org structure and access rules. | Journal Entries Financial postings read into warehouses and consolidation tools for reporting. | Groups is specific to Microsoft 365 and Journal Entries to SAP S/4HANA — each maps to any object or custom field on the other side. | |
| Mail Messages Exchange Online messages read for logging, archiving, or activity capture. | Customer / Supplier Roles Role-specific views of Business Partners mapped to CRM account types. | Mail Messages is specific to Microsoft 365 and Customer / Supplier Roles to SAP S/4HANA — each maps to any object or custom field on the other side. | |
| Calendar Events Events synced with scheduling tools and CRMs for meeting visibility. | Production Orders Manufacturing order status surfaced in planning and operations tools. | Calendar Events is specific to Microsoft 365 and Production Orders to SAP S/4HANA — each maps to any object or custom field on the other side. | |
| Contacts Personal and org contacts kept consistent with CRM contact records. | Business Partners Unified customer and supplier master records, the anchor entity for CRM-to-ERP account syncs. | Contacts is specific to Microsoft 365 and Business Partners to SAP S/4HANA — each maps to any object or custom field on the other side. |
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.
DetectionMicrosoft 365 notifies Stacksync of record changes through webhook events. Graph change notifications (webhooks) plus delta queries for incremental sync.
DeliveryEach detected change is written to SAP S/4HANA through its API, with automatic retries and rate-limit backoff.
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 Microsoft 365 through its API, with automatic retries and rate-limit backoff.
Real-time sync, workflow automation, event queues, EDI, and monitoring, for every Microsoft 365–SAP S/4HANA connection.
Changes in Microsoft 365 or SAP S/4HANA instantly reflect in both systems. No stale data, no manual imports.
Trigger automated workflows whenever Microsoft 365 or SAP S/4HANA data changes, update records, fire webhooks, or kick off sequences without brittle API scripts.
Handle millions of events per minute without losing a single Microsoft 365 or SAP S/4HANA record.
Track your Microsoft 365 ⇄ SAP S/4HANA sync health, view errors, and replay failed events in one click.
Transform legacy EDI complexity into simple database interactions between Microsoft 365 and SAP S/4HANA.
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.
Authenticate Microsoft 365 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.
Pick the Microsoft 365 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.
Fields map automatically even when names and types differ. Stacksync handles transformation and type casting for you, zero configuration required.
Yes. Stacksync provides a managed, real-time two-way integration between Microsoft 365 and SAP S/4HANA: authenticate both systems, choose the objects to sync (such as Microsoft 365's Planner & To Do Tasks and Users), map fields visually, and changes propagate both ways in milliseconds — no code required.
Yes — Stacksync ships production-grade connectors for both Microsoft 365 and SAP S/4HANA. The connectors handle authentication, schema detection, rate limits, and retries; you configure the sync, and Stacksync operates it.
Change detection on Microsoft 365: Graph change notifications (webhooks) plus delta queries for incremental sync. 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.
On the Microsoft 365 side: Teams, Planner & To Do Tasks, Users, Groups, plus custom fields where Microsoft 365 exposes them. On the SAP S/4HANA side: Deliveries, Journal Entries, Customer / Supplier Roles, Production Orders. Stacksync auto-detects both schemas and converts types between the two systems.
Yes. Each object mapping can be bidirectional or restricted to a single direction (both systems accept writes). Read-only mirrors, one-way pushes, and full two-way sync can be mixed in the same integration.
Common patterns for Microsoft 365 and SAP S/4HANA: Where Microsoft 365 faces customers and SAP S/4HANA carries account records; Where Microsoft 365 collects payments: transactions post through; Where SAP S/4HANA is the HR or people system of record. Order, invoice, or account status from SAP S/4HANA appears alongside the customer in Microsoft 365, so front-line teams answer from live data.
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.
Let your users access Stacksync from your centralized user management systems. Works with Okta, Azure, Google SSO and more.
Immediately get alerted about record syncing issues over email, Slack, PagerDuty and WhatsApp. Resolve issues from a centralized dashboard with retry and revert options.
Securely connects to your systems with:
Every pair below is a real-time, two-way sync. Search all 458 integrations available for Microsoft 365 and SAP S/4HANA.