ERP migration

Migrate from reybex to Microsoft Dynamics 365 Business Central

Field-level mapping, validation, and rollback between reybex and Microsoft Dynamics 365 Business Central. We move data and schema; workflows are rebuilt natively in Microsoft Dynamics 365 Business Central.

reybex logo

reybex

Source

Microsoft Dynamics 365 Business Central

Destination

Microsoft Dynamics 365 Business Central logo

Compatibility

67%

8 of 12

objects map 1:1 between reybex and Microsoft Dynamics 365 Business Central.

Complexity

BStandard

Timeline

6-10 weeks

Rollback included Accuracy guarantee Field-level validation

Overview

What this migration involves

Moving from reybex to Microsoft Dynamics 365 is a full-ERP migration that requires careful sequencing around reybex's non-public API and Germany's GoBD compliance requirements. reybex does not publish its API schema; we perform a schema-discovery step during pre-migration audit to enumerate field names, data types, and object relationships before writing any mapping. GoBD-compliant financial records carry TSE signatures, document numbers, and tax code assignments that are legally required in Germany; we map these explicitly and flag any records with missing TSE data for manual review before cutover. EDI transaction sets (ORDERS, INVOIC, DESADV) are platform-native and cannot transfer to a non-EDI destination; we export EDI partner mappings and configuration metadata as a reference document. Workflows, automations, and B2B trade rules built inside reybex do not migrate; we deliver a written inventory of these for the customer's implementation partner to rebuild in Dynamics 365. Business Central ($70-110 per user per month) is the natural destination for SME-scale reybex customers; Finance and Supply Chain Management ($180 per user per month) are options for companies that require enterprise-scale manufacturing or multi-entity financial consolidation.

Field-level fidelity

Every standard and custom field arrives verified.

Schema-aware mapping

AI proposes the map; you confirm before any record moves.

Relationships preserved

Parent–child, lookups, and ownership stay linked.

Full activity history

Calls, emails, meetings — with original timestamps.

Attachments & notes

Documents, uploads, and inline notes move with the record.

Why teams make this switch

Two sides of the same decision

Leaving

reybex logo

reybex

What's pushing teams away

  • Negative reviewers report software bugs and glitches causing frequent system crashes and data loss, with unresponsive customer support making issues worse.
  • The user interface is described as confusing and lacking intuitive design, making day-to-day navigation difficult for non-technical staff.
  • Some customers find pricing disproportionate to the functionality delivered, particularly at the entry tier where core features feel limited.
  • Setup complexity with extensive configuration options creates a steep learning curve that deters teams without dedicated ERP experience.

Choosing

Microsoft Dynamics 365 Business Central logo

Microsoft Dynamics 365 Business Central

What's pulling them in

  • Deep integration with Microsoft 365, Power BI, and Power Platform means organizations already on the Microsoft stack get identity, reporting, and workflow continuity out of the box.
  • Unified financials, sales, service, and operations replace multiple disconnected systems — users report that data entered once flows through purchase orders, invoicing, and approvals without manual re-entry.
  • Copilot AI features (predictive analytics, embedded business intelligence) are included in both Essentials and Premium tiers, addressing demand for AI without separate module purchases.
  • Named-user licensing with no concurrent model appeals to organizations that want predictable per-seat costs even if some users access the system infrequently.
  • Strong partner ecosystem with certified NAV-to-Business Central migration specialists gives mid-market companies confidence the cutover from legacy Navision can be executed reliably.

Object mapping

How reybex objects map to Microsoft Dynamics 365 Business Central

Each row shows how a reybex object lands in Microsoft Dynamics 365 Business Central, including any object-level transformations, lookup resolution, or schema-design dependencies.

Typical mapping — final map is confirmed during the sample migration step.

reybex

Customers

maps to

Microsoft Dynamics 365 Business Central

Customer

1:1
Fully supported

reybex Customers map to Dynamics 365 Customer records, which can serve as a Person or Company customer type. Address records (street, city, postal code, country) map to the Dynamics 365 Address table; German address formats (Straße, Hausnummer split) are preserved as separate address lines or parsed into structured fields during transform. reybex customer-specific pricing tiers map to Customer Price Groups in Dynamics 365. Tax identification numbers map to VAT Registration Number on the Customer card.

reybex

Articles

maps to

Microsoft Dynamics 365 Business Central

Item

1:many
Mapping required

reybex Articles (SKUs with variant matrices for size, color, etc.) unpack into Dynamics 365 Item records. The parent Article becomes the Item; each variant (size-color combination) becomes a separate Item Variant attached to the parent. Multi-language article descriptions (German, English) map to Dynamics 365 Item Translation records. reybex's article-specific units of measure (Stück, kg, Liter) map to Dynamics 365 Unit of Measure groups. Article pricing from reybex price lists maps to Sales Prices on the Item or to Customer Price Groups for customer-specific pricing.

reybex

Sales Orders

maps to

Microsoft Dynamics 365 Business Central

Sales Order

1:1
Fully supported

reybex Sales Orders map to Microsoft Dynamics 365 Sales Order. The order header (customer reference, order date, delivery date, shipping method) maps to corresponding Sales Order header fields. Line items resolve the Item number from the Article mapping and preserve quantity, unit price, discount percent, and line amount. reybex order status (opened, confirmed, partially shipped, completed, cancelled) maps to Dynamics 365 Status and Shipment Status fields. Open orders migrate first; archived or completed orders migrate based on the customer's data retention scope defined during scoping.

reybex

Purchase Orders

maps to

Microsoft Dynamics 365 Business Central

Purchase Order

1:1
Mapping required

reybex Purchase Orders map to Dynamics 365 Purchase Order. The vendor reference maps to the Dynamics 365 Vendor account resolved from the vendor mapping. PO approval workflows from reybex (configured in the Run tier) do not transfer; we flag the workflow structure in the automation inventory document for the customer's admin to reconfigure in Dynamics 365 using Approval Workflows or Power Automate. Line items map by resolving the Item number from the Article mapping against the vendor's item cross-reference if configured.

reybex

Inventory / Stock Levels

maps to

Microsoft Dynamics 365 Business Central

Item Ledger Entry + Warehouse Entry

lossy
Mapping required

reybex real-time stock quantities map to Dynamics 365 Item Ledger Entries for quantity tracking and Warehouse Entries for bin-level placement. Each reybex warehouse location maps to a Dynamics 365 Location code. Lot and batch tracking data from reybex maps to Dynamics 365 Item Tracking Codes and Item Tracking Lines if the customer uses serialized or lot-tracked inventory. We schedule inventory exports during low-activity windows and cross-reference open order quantities to produce a consistent cutover balance that excludes in-flight allocations.

reybex

Invoices

maps to

Microsoft Dynamics 365 Business Central

Sales Invoice

1:1
Mapping required

reybex Invoices map to Microsoft Dynamics 365 Sales Invoice records with GoBD-compliant metadata explicitly preserved. TSE signatures, document numbers, and tax codes (German tax codes MwSt 19%, 7%, 0%, and intra-Community supply codes) map to the corresponding Dynamics 365 fields on the posted invoice. We flag any reybex invoice records missing TSE data for manual review before the cutover. Multi-currency invoices from EU cross-border trade map to Dynamics 365 Currency and exchange rate fields with the original currency amount preserved alongside the euro equivalent.

reybex

Banking / Cash Transactions

maps to

Microsoft Dynamics 365 Business Central

Bank Account Ledger Entry / Cash Document

1:1
Mapping required

reybex bank statements and POS cash register transactions (TSE-signed receipts) map to Dynamics 365 Bank Account Ledger Entries or Cash Document records depending on the selected Finance module configuration. TSE-signed receipt metadata maps to external document number or a custom field capturing the TSE signature hash for audit trail continuity. German cash register (Kasse) configurations map to Dynamics 365 Cash Desk functionality in Business Central if the German localization is enabled.

reybex

Projects

maps to

Microsoft Dynamics 365 Business Central

Job

1:1
Mapping required

reybex Project records map to Dynamics 365 Job (Business Central) or Project Operations entities. Task hierarchies and milestones from reybex flatten to Job Task Lines and Job Planning Lines in Business Central. Time entries map to Job Journal Lines for hours; expense items map to Job Journal Lines for item consumption. Budget amounts from reybex are stored as reference values in Job Budget fields for the customer's admin to verify post-migration. Project status (active, on-hold, completed) maps to the Job status field.

reybex

Manufacturing / Production Orders

maps to

Microsoft Dynamics 365 Business Central

Production Order

1:1
Mapping required

reybex BOMs (bills of materials) and production routings map to Dynamics 365 Production Bill of Materials and Production Routing. Finished goods outputs map to Production Order header and line items with the quantity and due date preserved. Material consumption lines map to Production Order Component Lines resolved against the Item mapping. Machine capacity planning data (work center calendars, setup and run times) maps to Dynamics 365 Capacity Ledger Entries if the customer uses capacity scheduling; this requires a partner-configured work center and machine center setup in the destination.

reybex

CRM Activities / Engagements

maps to

Microsoft Dynamics 365 Business Central

Activity (Task, Phone Call, Appointment)

1:1
Mapping required

reybex CRM activities (calls, emails, meetings, tasks, notes) tied to customer records map to Dynamics 365 Activity records. reybex call dispositions and duration map to the Dynamics 365 Phone Call subject with custom fields for disposition and duration. reybex meeting entries with attendee lists map to Dynamics 365 Appointment records with the attendee list preserved in the Required Attendees and Optional Attendees fields. reybex task engagements map to Dynamics 365 Task records with Status, Priority, and ActivityDate preserved.

reybex

Custom Fields

maps to

Microsoft Dynamics 365 Business Central

Custom Fields / Extensions

lossy
Mapping required

reybex custom fields on Articles, Customers, and Sales Orders require schema discovery per tenant before mapping. We detect all custom field definitions during the pre-migration audit visit using reybex's frontend endpoint introspection method. Each discovered custom field is assigned a Dynamics 365 field type (Text, Decimal, Integer, Boolean, Option) and mapped to the corresponding table extension in Business Central or Finance. Custom field data migrates as part of the parent object import phase.

reybex

EDI Documents

maps to

Microsoft Dynamics 365 Business Central

EDI Configuration (reference only)

lossy
Not supported

reybex EDI transaction sets (ORDERS, INVOIC, DESADV) are platform-native message formats that do not transfer to Dynamics 365 as functional records. We export EDI partner mappings (partner ID, IDOC type, message format) as a structured reference document that the customer's implementation partner or EDI middleware provider (LANSA, Extrom, or SEEBURGER) uses to reconfigure EDI in Dynamics 365. Actual EDI transaction history remains in reybex for audit reference but is not imported into Dynamics 365.

Gotchas + challenges

What specifically takes care here

Platform-specific issues from each side, plus the pair-specific challenges that don't show up on either platform's page on its own.

reybex logo

reybex gotchas

High

No public API documentation for schema discovery

High

EDI transaction sets are not transferable

Medium

GoBD compliance metadata must be explicitly preserved

Medium

Inventory snapshots require coordination with active orders

Low

No documented bulk export or batch API

Microsoft Dynamics 365 Business Central logo

Microsoft Dynamics 365 Business Central gotchas

High

Named-user licensing has no concurrent-use relief

High

API rate limits throttle large-volume migrations

Medium

Historical posted transactions require selective migration scoping

Medium

NAV-to-Business Central cloud migration requires partner coordination

Low

Custom fields and AL extensions require separate migration handling

Pair-specific challenges

  • reybex API schema is not publicly documented

    reybex does not publish its API schema. We cannot programmatically inspect field names, data types, or object relationships without tenant credentials and a schema-discovery visit using reybex's frontend endpoint introspection method. This adds a discovery step not present in migrations from better-documented platforms. We recommend customers request API access credentials during scoping so the discovery visit can run in parallel with other preparation work. Without credentials, we quote a discovery-inclusive estimate that assumes additional time for field enumeration.

  • GoBD compliance metadata must transfer explicitly or records fail audit

    reybex invoices and cash register transactions carry TSE signatures, document numbers, and German tax codes that are legally required for German fiscal compliance. Dynamics 365 Business Central and Finance require the German localization extension to interpret these fields, and the customer's implementation partner must enable it. We map TSE metadata field by field and flag any reybex financial record missing a TSE signature for manual review before cutover. Records imported without TSE data will not satisfy German audit requirements and may require correction in both systems.

  • EDI transaction sets cannot migrate to Dynamics 365 as functional records

    reybex supports deep EDI workflows for B2B trade with ORDERS, INVOIC, and DESADV message types. Dynamics 365 does not include native EDI as a core feature; EDI requires a separate middleware layer (LANSA, Ferrostand, or a cloud EDI platform) or partner-developed extensions. We export EDI partner configuration as a reference document but do not import EDI transaction history. Customers must re-onboard EDI partners to the new system post-migration, which typically takes four to eight weeks per partner depending on the partner's technical readiness.

  • reybex variant matrices must unpack into Dynamics 365 Item Variants

    reybex Articles store variant attributes (size, color, material) as structured rows within a single article record. Dynamics 365 uses a separate Item Variant table with a distinct row per variant combination. This transformation requires the full variant matrix to be enumerated during mapping, which can produce a significantly larger Item record count in Dynamics 365 than the original Article count in reybex. We advise customers to confirm their variant naming convention and validate the resulting Item Variant count against their Dynamics 365 licensing tier before migration.

  • reybex inventory snapshots risk discrepancy with in-flight orders

    reybex tracks real-time stock across warehouse locations and channels simultaneously. Exporting a stock snapshot while orders are in-flight can produce a cutover balance that does not reflect committed allocations. We schedule inventory exports during a low-activity window agreed with the customer, cross-reference open order line quantities against the snapshot, and flag any warehouse location where committed quantity exceeds snapshot quantity. The customer resolves these discrepancies before the final cutover inventory import runs in Dynamics 365.

Migration approach

Six steps for a successful reybex to Microsoft Dynamics 365 Business Central data migration

  1. Schema discovery and API access

    We request reybex API credentials and conduct a schema-discovery visit using reybex's frontend endpoint introspection method to enumerate field names, data types, object relationships, and custom field definitions for the specific tenant. This discovery output feeds the mapping matrix and confirms which reybex modules (Go, Run, Fly) are active so we scope the correct object set. We simultaneously assess the target Dynamics 365 edition (Business Central Essentials, Premium, or Finance) with the customer's implementation partner and confirm Azure region and localization requirements for GoBD compliance.

  2. Data audit and GoBD compliance review

    We profile reybex data across all objects in scope for data quality issues: duplicate customers, inconsistent address formats, missing TSE signatures on financial records, inactive items still referenced in open orders, and variant matrices that need unpacking. We produce a data quality report and a remediation workstream for the customer's data steward to address before migration. GoBD compliance is reviewed specifically: every financial record (invoices, cash transactions, journal entries) must carry a TSE signature, document number, and valid tax code or be flagged for manual correction.

  3. Destination schema configuration

    We work with the customer's Dynamics 365 implementation partner to configure the destination environment: Business Central or Finance locations, units of measure, tax codes (matching German MwSt rates), customer and vendor posting groups, item posting groups, and chart of accounts mapping. For reybex EDI configurations, we document partner mappings and message format requirements for the EDI middleware reconfiguration that the partner handles separately. We deploy any required Dynamics 365 extensions for German localization and verify TSE field mappings are writable in the target environment.

  4. Sandbox migration and reconciliation

    We run a full migration into a Dynamics 365 Sandbox using production-like data volumes. The customer's implementation partner and finance team reconcile record counts (Customers in, Items in, Sales Orders in, Purchase Orders in, Posted Invoices in, Inventory balances in, Activities in), spot-check fifty random records against the reybex source, and validate GoBD metadata on a sample of posted invoices. Any mapping corrections or data quality issues surface here and are resolved before production migration begins. EDI partner configuration is reviewed against the reference document to confirm completeness.

  5. Production migration in dependency order

    We run production migration in record-dependency order: Locations and Units of Measure first (referenced by all inventory and item records), then Items and Item Variants (referenced by order lines), then Customers and Vendors, then Inventory (Item Ledger Entries with resolved Location), then Sales Orders and Purchase Orders, then Posted Invoices and Cash Documents (GoBD metadata verified per record), then Activities (Tasks, Phone Calls, Appointments via API batch), then Projects and Production Orders. Each phase emits a row-count reconciliation report before the next phase begins. EDI transaction history remains in reybex and is not imported.

  6. Cutover, validation, and automation rebuild handoff

    We freeze reybex writes during cutover, run a final delta migration of any records modified during the migration window, then enable Dynamics 365 as the system of record. We deliver the Workflow and EDI Configuration Inventory document to the customer's implementation partner. We support a two-week hypercare window where we resolve any record-level reconciliation issues raised by the customer's team. We do not rebuild reybex workflows or EDI rules as Dynamics 365 workflows or EDI configurations inside the migration scope; those are separate engagements with the customer's implementation partner.

Platform deep dives

Context on both ends of the pair

reybex logo

reybex

Source

Strengths

  • Deep integration across ERP, WMS, and financial accounting eliminates data silos for trading and manufacturing SMEs
  • German hosting with ISO/IEC 27001 and 99.99% uptime meets EU data residency and compliance requirements
  • 100+ pre-built integrations including marketplace connectors, EDI, and B2B shop middleware
  • Modular pricing tiers allow SMEs to start with core ERP and expand into manufacturing or advanced finance
  • GoBD-compliant cash register with TSE interface satisfies German statutory requirements out of the box

Weaknesses

  • API documentation is not publicly accessible and requires partner or enterprise access
  • Mixed customer reviews cite bugs, crashes, and unresponsive support as recurring pain points
  • Pricing is opaque for Run and Fly tiers, requiring sales contact to determine cost at scale
  • User interface is described as unintuitive with a steep learning curve for non-technical teams
  • Limited information about rate limits, bulk export capabilities, and API quota management
Microsoft Dynamics 365 Business Central logo

Microsoft Dynamics 365 Business Central

Destination

Strengths

  • Tight integration with Microsoft 365 (Outlook, Teams, SharePoint) for users already in the Microsoft ecosystem.
  • Includes Copilot AI, predictive analytics, and embedded Power BI dashboards at no additional cost in both license tiers.
  • Supports multiple companies within a single tenant for holding-company or multi-entity organizational structures.
  • Open REST API v2.0 with OAuth 2.0 authentication and data entity abstraction layer for developer-friendly integrations.
  • Strong partner ecosystem specializing in NAV-to-Business Central migrations provides implementation confidence for legacy upgrades.

Weaknesses

  • Named-user licensing model means every active user account requires a paid license — no concurrent access model to reduce costs for occasional users.
  • SaaS-only deployment means no on-premises option; organizations requiring full data residency control may not have viable alternatives within Microsoft's stack.
  • Manufacturing module (Production Orders, routing, work centers) is only available on Premium tier, pushing cost-sensitive manufacturers to higher-priced plans.
  • Customization and extension development requires AL language knowledge and developer licenses, limiting what power users can do without a partner engagement.
  • Global pricing increases effective October 2024 and again October 2025 after five years of stable pricing, creating budget uncertainty for existing customers.

Complexity grading

How hard is this migration?

Standard ERP migration. 1 of 8 objects need a mapping; the rest are 1:1.

B

Overall complexity

Standard migration

Derived from compatibility, mapping clarity, API constraints, and data volume across reybex and Microsoft Dynamics 365 Business Central.

  • Object compatibility

    B

    1 of 8 objects need a mapping; the rest are 1:1.

  • Field mapping clarity

    C

    Field mapping is derived from defaults — final spec confirmed during the sample migration.

  • Timeline complexity

    B

    8-object category — typical timelines run 2–7 days end-to-end.

  • API constraints

    B

    reybex: Not publicly documented.

  • Data volume sensitivity

    A

    reybex exposes a bulk API — large-volume migrations stream efficiently.

Estimator

Estimate your reybex to Microsoft Dynamics 365 Business Central migration cost

Rule-based pricing — no per-record fees, no manual quotes. Migrations over 2M records are scoped individually.

Step 1

What are you migrating?

Pick a category, then your source and destination platforms.

Category

FAQ

Frequently asked questions about reybex to Microsoft Dynamics 365 Business Central data migrations

Answers to the questions buyers ask most during reybex to Microsoft Dynamics 365 Business Central migration scoping. Not seeing yours? Book a call.

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SME-scale migrations under 10,000 active customers, 50,000 articles, and 5,000 open orders with clean data and no manufacturing module typically land between six and ten weeks. Mid-market migrations with production orders, multi-warehouse inventory, EDI partner re-onboarding, and GoBD compliance verification extend to twelve to twenty weeks. The reybex schema-discovery step adds one to two weeks to the timeline that would not appear in a migration from a platform with public API documentation. Dynamics 365 implementation (environment provisioning, localization setup, partner configuration) runs in parallel and is managed by the customer's implementation partner, not by FlitStack AI.

Adjacent paths

Related migrations to explore

Ready when you are

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