Enterprise ERP integration, no middleware required

Dynamics 365 and SAP sharing one source of truth. No middleware. No monthly fees.

Your customer records, sales orders, finance data, and inventory stay matched across both systems. We write custom code, you own the source. Fixed fee per domain, no monthly subscriptions.

0+
Dynamics 365-SAP projects delivered
6
Data categories covered
Zero
Monthly platform fees

Tell us your setup. Call in 48 hours. Proposal in 3 days. First domain live in 3 weeks.

D365 Finance and Operations
SAP ECC 6.0
SAP S/4HANA
Enterprise integration architecture
D365 F&O
Customer records
SAP S/4HANA
Business partner
D365 Sales
Orders and CRM
Redefine layer
SAP SD / MM
Sales and materials
D365 SCM
Inventory data
SAP WM / WH
Warehouse mgmt
Customer master synced
Orders flowing
Live
The real cost of disconnected ERPs

This is what happens when D365 and SAP run on separate data.

Switch the toggle to see both states. Most teams underestimate how many records don't match between D365 and SAP. The numbers below come from real pre-integration audits.

Dynamics 365 - isolated
Customer: Apex ManufacturingID: C-10421Not in SAP
Sales Order: SO-44821$127,000SAP: MISSING
Inventory: Item SKU-4421D365: 450 unitsSAP: 312 units
GL Account: 110000D365 balance: $2.4MSAP: $2.1M
Production Plan Q4D365 planned ordersSAP PP: not received
5 data objects checked. 4 discrepancies found. Reconciliation required.
SAP S/4HANA - isolated
Business Partner: ApexBP-00421D365: different name
SD Order: SO-8812$119,000D365 SO differs: $8k
Material: SKU-4421 stock312 unitsD365 shows 138 more
FI Account: 0110000SAP balance: $2.1MD365: $300k variance
PP Production ordersManually enteredD365 plan ignored
Manual reconciliation time at month-end: 3 days. Error rate: 23%. Audit risk: elevated.

Pain - Enterprise IT team reviewing system data

Enterprise IT and finance team reviewing Dynamics 365 and SAP data side by side at open plan office, natural light
How the integration works, domain by domain

Six data categories. One integration layer. Every record accounted for.

Each category has its own data objects, sync direction, and update frequency. Select any domain below to see exactly what moves, where it goes, and how often.

Domain 1 - Customer Master

Every D365 customer record matched to its SAP Business Partner, both ways

D365 Account creation triggers SAP Business Partner creation via OData API. BP category, role, and company code assigned automatically.
SAP BP updates (payment terms, credit limit) sync back to D365 Account credit fields. Bidirectional conflict resolution by last-modified timestamp.
Existing D365/SAP records matched on VAT number and company name during initial load. Unmatched records flagged for manual review before go-live.
OData v4 APIReal-time webhookBidirectional
Customer Master Sync / live
Recent sync events
Apex ManufacturingD365 C-10421SAP BP-00421
Global Systems IncD365 C-10422SAP BP-00422
Meridian CorpD365 C-10423Matching review
847 customers synced this session
Domain 2 - Sales Orders

Confirmed D365 sales orders create SAP SD documents automatically

D365 Sales Order confirmation triggers SAP SD sales order creation via BAPI. Material, quantity, pricing, and delivery date passed in the initial call.
SAP delivery and billing document numbers written back to D365 Sales Order custom fields. SAP delivery status syncs to D365 order line fulfillment status in real time.
D365 price list and SAP SD pricing procedure mapped in field configuration. Pricing discrepancies above threshold trigger an alert before the SAP document posts.
SAP BAPI/RFCEvent-drivenD365 to SAP primary
Sales Order Sync / live
D365 SO-44821$127,000SAP SO-88124
D365 SO-44822$84,500SAP SO-88125
D365 SO-44823$210,000Price review
Domain 3 - Finance and GL

D365 general ledger entries post to SAP FICO at every period close

Chart of accounts mapping document written before build: every D365 main account mapped to its SAP GL account equivalent. Intercompany and elimination accounts handled per entity setup.
Period close event in D365 triggers batch GL entry push to SAP. Multi-currency transactions translated at period-close exchange rate. Reconciliation report generated automatically.
SAP FI BAPIPeriod-close batch
GL Sync / period close
4100 Revenue$2.84MSAP posted
5000 COGS$1.12MSAP posted
6100 Operating$387KSAP posted
Domain 4 - Inventory

SAP warehouse stock updates D365 on-hand inventory after every transaction

SAP goods movement events (goods receipt, transfer order, stock transfer) trigger D365 inventory adjustment via scheduled batch or near-real-time polling at 2-minute intervals.
SAP plant and storage location mapped to D365 warehouse and location. Multi-plant SAP setups handled with per-plant inventory ledger entries in D365.
SAP IDoc / WMSAP to D365 primary
Inventory Sync / live
SKU-4421SAP: 312 unitsD365: 312
SKU-4422SAP: 1,847 unitsD365: 1,847
SKU-4423SAP: 0 unitsD365: 0 (backordered)
Domain 5 - Production Orders

D365 planned orders create SAP production orders and report back on completion

D365 master planning-generated planned orders firmed and confirmed in D365 trigger SAP PP production order creation via BAPI. Routing, BOM version, and plant assigned from SAP master data.
SAP production order confirmation (goods receipt for finished goods) writes back to D365 master planning as production completion. D365 available-to-promise recalculated automatically.
SAP PP BAPI/CO01Bidirectional
Production Sync / live
D365 PlannedOrder-881500 unitsSAP PP-100421
SAP PP-100418 confirmed450 unitsD365 receipt posted
Domain 6 - Reporting and BI

D365 and SAP data combined into one reporting layer for your BI tools

Integration layer exposes a unified API endpoint combining D365 OData and SAP BW or OData queries. Power BI, Tableau, or your chosen BI tool connects to a single endpoint rather than two separate systems.
Entity mapping maintained in the integration layer means reporting queries return data with consistent keys. SAP cost center codes and D365 department codes resolved to shared reporting dimensions.
Unified API endpointBoth systems
Unified BI data / live
Revenue (D365)$2.84MConsolidated
COGS (SAP CO)$1.12MConsolidated
Open orders (both)$4.2MUnified view
What you get in each integration domain

What each domain delivers and how we build it.

D365 is typically the system of record for new customer creation on the CRM side. SAP is the system of record for vendor and supplier data. The integration creates a master data governance layer: new D365 accounts trigger SAP Business Partner creation, SAP vendor changes sync back to D365. Deduplication logic prevents double-creation. Existing records are matched during initial load using configurable matching rules (VAT number, company name, postal code combination).

OData v4 APIDeduplication rulesInitial load matching

The order-to-cash process spans both systems. The integration creates SAP SD documents from confirmed D365 sales orders, receives SAP delivery and billing document references back into D365, and updates D365 order line status as SAP processes goods issue and billing. Cash application from SAP AR can optionally sync back to D365 as order close event. The integration handles partial deliveries, back-orders, and cancellations at line item level.

BAPI/RFC callsLine-level status updatesPartial delivery handling

D365 Supply Chain purchase orders confirmed and sent to SAP MM for goods receipt processing. SAP goods receipt events write back to D365 purchase order as receipt confirmation. SAP vendor invoice parking and posting events sync to D365 as payable liability. Three-way match in SAP uses the D365 purchase order as the reference document. Discrepancies route to the correct team in both systems.

SAP MIGO/MIRO3-way match referenceAP sync

The most sensitive domain. Chart of accounts mapping document approved before build starts. Period-close GL entry replication from D365 to SAP FICO. SAP cost center and profit center hierarchy mapped to D365 financial dimensions. Multi-company and multi-currency setups handled with entity-specific posting rules. Automated reconciliation report generated at each period-close showing matched totals, variances, and unposted items for both systems.

SAP FI BAPICOA mapping approvedMulti-entity

D365 master planning net requirements drive SAP PP production order creation. SAP production confirmation and goods receipt events post completed production to D365 as inventory increase. D365 available-to-promise calculations receive real-time SAP plant stock and production order status. BOM versions and routing from SAP master data used in D365 planning calculations via pre-loaded reference tables.

SAP CO01/CO15ATP integrationBOM reference sync

Value - Enterprise architect reviewing integration architecture

Enterprise integration architect reviewing Dynamics 365 and SAP integration domain diagrams at whiteboard, natural light
How we price D365-SAP integration projects

Scoped domain by domain. Line-by-line pricing. Get a proposal with zero obligation.

Scope factor 1

Domains in scope

Each of the six integration domains (Customer, Orders, Finance, Inventory, Production, Reporting) is scoped and priced independently. Most clients start with Customer Master and Order-to-Cash as Phase 1. Finance and Production typically follow in Phase 2. You choose the scope and sequence.

Scope factor 2

SAP version and API surface

SAP ECC 6.0 uses primarily BAPI/RFC and IDoc interfaces. SAP S/4HANA exposes OData and CDS views in addition to BAPI/RFC. S/4HANA integrations typically have more flexibility but require knowledge of both the new OData layer and legacy BAPI methods for objects not yet migrated to OData.

Scope factor 3

D365 version and customizations

D365 Finance and Operations, D365 Sales (CRM), and D365 Supply Chain Management each have different API surfaces. Custom D365 extensions and ISV solutions that modify standard entities require review before scoping. We audit your D365 entity customizations as part of discovery.

Client results, verified

D365 and SAP connected. Books matching on day one. Month-end close automated.

Enterprise integration results
0%
Customer records matched between D365 and SAP
0h
Per week manual reconciliation eliminated
Zero
Cross-system data discrepancies at month-end
3wk
To first live domain from signed scope
Industrial manufacturer, 3 SAP plants, D365 F&O
Challenge
D365 Finance ran front-office ERP and CRM. SAP ECC handled production, warehouse, and procurement. No integration existed between the two systems. The finance team spent 18+ hours per week on manual reconciliation. Period close took 5 days. SAP credit limits were invisible in D365 at order time.
Integration approach
Phase 1: Customer Master and Order-to-Cash integration. D365 Account records linked to SAP Business Partners. D365 confirmed orders trigger SAP SD order creation. SAP delivery and billing numbers written back to D365. Phase 2: GL period-close sync and SAP inventory push to D365 on-hand.
SAP ECC 6.0D365 FinanceBAPI/RFCOData v4
Result
0h/wk
The integration eliminated all manual reconciliation. Period close dropped from 5 days to 1. SAP credit limits now appear in D365 at order time. Zero data discrepancies at month-end for 8 straight months after go-live.

Proof - Enterprise ERP integration team

Enterprise ERP integration team reviewing Dynamics 365 and SAP cross-system data reports at large monitors, natural side light
API methods
OData, BAPI/RFC, IDoc
First domain live
3 to 4 weeks
Why teams choose Redefine

What makes a Dynamics 365 SAP integration project succeed where others stall.

Field mapping first

Field mapping document approved before any code is written

Every D365 entity mapped to every SAP object, including transformation rules, default values, and conflict resolution logic. Written and approved before build. The document becomes the source of truth for the connector and handover documentation.

BAPI and OData expertise

We use the right API method for each SAP object and D365 entity combination

SAP ECC and S/4HANA expose data through BAPI/RFC, IDoc, and OData. D365 exposes data through OData v4, Data Management Framework, and Business Events. The correct method is chosen per object, not per preference. Some SAP objects only support BAPI; using OData where BAPI is required breaks the integration.

Enterprise error handling

Every failed event classified by SAP return code and D365 response status

SAP BAPI calls return structured error messages with SAP message classes and codes. The integration parses these, classifies the failure type, and routes to the correct resolution path - whether that is an automatic retry, a data correction workflow, or an alert to the IT team with the exact SAP error text.

No middleware vendor

No iPaaS dependency. No monthly connector fees. Custom code you own.

Enterprise iPaaS platforms charge thousands per month for D365-SAP connectors, with additional fees per object type and per message volume. We write a custom connector and deliver the complete source code at go-live. No vendor dependency. No monthly fee. Your internal team or any future partner can maintain it.

Phased delivery

Phase 1 goes live in 3 to 4 weeks, not 6 months

Enterprise integration projects stall because teams try to scope everything at once. We scope and deliver by domain, with each domain producing a working integration in 3 to 5 weeks. You see live data from the highest-priority domain before Phase 2 begins. Risk is isolated per domain, not compounded across the entire project.

Source code on go-live

Complete source code, field map, and runbook delivered on go-live day

Every integration delivers complete source code, the field mapping document used to build the connector, an error handling runbook covering the top error scenarios, and a data flow diagram showing exactly what moves where and when. Your IT team can maintain, extend, or hand over the integration to any future partner.

Common questions

What enterprise teams ask before they start a Dynamics 365 SAP integration.

Yes. SAP ECC 6.0 integrations use primarily BAPI/RFC remote function calls and IDoc messaging for process-level integration. SAP S/4HANA also supports OData services and CDS view consumption in addition to BAPI/RFC, giving more flexibility per object. We confirm your SAP version, component versions, and any custom Z-function modules or BADI implementations before scoping. Custom SAP extensions that modify standard transaction behavior need to be reviewed because they can change the BAPI call signature or return structure.

D365 custom extensions (X++ code, ISV solutions, data entity customisations) and SAP customer modifications (Z-programs, user exits, BADIs, enhancement spots) are reviewed as part of the discovery step. If a custom field or modified process is in scope for the integration, it must be mapped explicitly in the field mapping document before build. Generic connectors break on customizations because they only handle the standard object schema. We audit both systems and include non-standard fields in the mapping.

Before the integration goes live, existing records in both systems need to be matched and linked. For Customer Master, we run a matching process using VAT number, company name, and postal code as matching keys. Records that match with high confidence are linked automatically. Ambiguous matches are presented in a review report for manual confirmation. Records that exist in only one system are created in the other during initial load. The cut-over sequence is: (1) initial load and matching in a staging environment, (2) client review and confirmation of matched records, (3) production go-live with only new-event sync active.

A single integration domain (for example Customer Master only, or Order-to-Cash only) typically goes live in 3 to 5 weeks from signed scope. A full multi-domain project (Customer Master + Orders + Finance + Inventory) is typically delivered in 10 to 16 weeks, sequenced by domain so you have live integrations running before the full project completes. The finance domain (GL period-close) takes the most time due to chart-of-accounts mapping approval and the requirement to test against your actual period-close cycle. Timeline varies based on D365 version, SAP version, and how heavily each system is customized.

Fixed-scope, fixed-fee pricing by domain. Each domain is scoped and quoted separately. Discovery (system review, field mapping document, architecture sign-off) is scoped before build begins. No monthly middleware subscription, no per-transaction fees, no connector licence after go-live. Source code and documentation delivered at each domain go-live. You receive a line-by-line proposal before committing to any work beyond discovery.

Start your D365 SAP integration project

Get a scoped proposal in 3 days.

No commitment. No pitch. Tell us your D365 version, SAP version, and which data flow causes the most manual work today.

Brief received

We will review your D365 and SAP setup and send a scoped proposal within 3 business days. Expect a call within 48 hours.

We call within 48 hours. Your proposal arrives in 3 days. Phase 1 goes live in 3 weeks.

Call in 48h
Proposal 3 days
45+ D365-SAP
Code ownership
Your next step

Dynamics 365 and SAP sharing one source of truth. No middleware. Fixed fee. Code you own.

No commitment. No pitch. Tell us your D365 and SAP versions and which domain causes the most manual work. We will scope the integration and send a fixed-fee proposal in 3 days. It includes your field map, domain sequence, and timeline.

No commitment. No pitch. Call within 48 hours.

D365 - SAP Integration Layer / live
All domains active
Customer Master1,247 recordsMatched 100%
Sales Orders today64 D365 orders64 SAP SD created
GL Period closeOctober 2024SAP FICO posted
Inventory sync3 SAP plantsD365 on-hand matched
Manual reconciliation this month: 0 hours.

Pre-footer - Enterprise integration team at go-live

Enterprise integration and IT team reviewing live Dynamics 365 SAP integration dashboard after successful go-live, natural office light

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