SAP Business ByDesign versus Microsoft Dynamics 365 Business Central
SAP Business ByDesign and Microsoft Dynamics 365 Business Central are the two cloud mid-market ERPs most often shortlisted by German Mid-Market operators that want SaaS economics within a major vendor ecosystem. ByDesign is SAP's mature multi-tenant cloud product, with a strong German Mid-Market orientation and out-of-the-box GoBD and DATEV. D365 Business Central is Microsoft's growing cloud product, descended from Navision/NAV, with an exceptionally broad DACH partner ecosystem — KUMAVISION, Cosmo Consult, To-Increase, NAVAX — and a deep AppSource marketplace. This comparison frames where each genuinely fits, with attention to SAP's shifting focus toward S/4HANA Cloud Public Edition.
Overall positioning
SAP Business ByDesign: launched in 2007 as SAP's purpose-built multi-tenant cloud ERP, with roughly 4,000 customers worldwide and a meaningful DACH share concentrated in Mid-Market operators between 100 and 1,000 employees. Sold through SAP and a focused DACH partner network including All for One, FIS and itelligence-derived units of NTT DATA Business Solutions. D365 Business Central: Microsoft's SMB and lower-mid-market cloud ERP, the successor to Dynamics NAV. Tens of thousands of customers globally, with one of the largest partner ecosystems in DACH: KUMAVISION (industry verticals), Cosmo Consult, To-Increase, NAVAX and many more. AppSource gives access to hundreds of industry-specific extensions installable in days rather than months. Both products target similar size brackets, but the buyer mind-set differs: ByDesign attracts SAP-anchored Mid-Market operators wanting cloud delivery with native German compliance; Business Central attracts Microsoft-stack organisations that want wide partner choice and rapid add-on availability.
Functional comparison
Both products cover the SMB and mid-market ERP scope as cloud-delivered solutions. ByDesign strengths: native German localisation handling GoBD, native DATEV connectivity used heavily by Steuerberater, native ZUGFeRD and XRechnung; strong project-based accounting and services functionality; tight integration with the wider SAP ecosystem via SAP Cloud Platform Integration; multi-tenant SaaS with quarterly upgrades. D365 Business Central strengths: deep functional breadth via AppSource, with industry-specific extensions for almost every Mid-Market vertical (food via To-Increase, industrial manufacturing via KUMAVISION, services via Continia Document Capture); native integration with the Microsoft cloud stack (Microsoft 365, Power BI, Power Automate, Teams, Entra ID); battle-tested DATEV through partner connectors; native ZUGFeRD and XRechnung. Where parity exists: core financials, multi-currency, multi-entity consolidation at mid-market depth, EU VAT including OSS/IOSS, REST APIs, mobile UI, basic manufacturing and warehouse management. The differentiation centres on ecosystem velocity: ByDesign has fewer but more SAP-aligned options; Business Central has a much larger marketplace and faster install cadence.
Architecture and deployment
ByDesign architecture: true multi-tenant SaaS on SAP's own infrastructure, with quarterly upgrades. Extensibility through the SAP Cloud Applications Studio (key-user and PDI partner extensions) and integration via SAP Cloud Platform Integration. D365 Business Central architecture: cloud-native SaaS on Microsoft Azure, with two major releases per year and continuous service updates in between. Extensibility through AL extensions, the Power Platform (Power Apps, Power Automate) and a deep AppSource ecosystem. A Business Central on-premises edition still exists for the diminishing share of customers who require it. Roadmap reality: Business Central continues to receive aggressive product investment from Microsoft and is clearly the strategic mid-market spearhead. ByDesign development has slowed as SAP focuses on S/4HANA Cloud Public Edition for the mid-market segment. ByDesign remains supported but prospects should factor the slower roadmap into a five- to seven-year horizon. Customisation discipline: both products reward staying close to standard. Business Central's AL extension model and per-tenant extension catalogue make upgrade survival relatively predictable; ByDesign's PDI extensions also handle upgrades well when developed to standard.
Selection considerations
Choose SAP Business ByDesign if: you are an established SAP shop wanting cloud mid-market without re-platforming; you anticipate consolidation into an SAP parent; you want a fully SAP-stack footprint; or your scope is dominated by services and DACH-centric financials with deep Steuerberater involvement. Choose D365 Business Central if: your IT strategy is Microsoft-stack (Microsoft 365, Azure, Entra ID, Power Platform); you want the broadest possible DACH partner choice; you anticipate industry-specific extension needs that AppSource can fill in days; or you want a platform with clear long-term vendor investment. Implementation effort: a 100-user ByDesign project runs 4 to 9 months and EUR 250,000 to 700,000 all-in; Business Central at comparable scope is similar, sometimes faster when AppSource extensions cover requirements out of the box. Partner network: Business Central's DACH ecosystem is substantially larger and more diverse, which matters for industry-specialist fit and competitive sourcing. Roadmap: factor SAP's strategic focus on S/4HANA Cloud Public Edition into any ByDesign selection.
Related Topics
Frequently Asked Questions
Is SAP Business ByDesign being discontinued?
No, but the strategic emphasis at SAP has clearly shifted to S/4HANA Cloud Public Edition for the mid-market. ByDesign remains supported with ongoing maintenance and incremental enhancements, but prospects should not expect the aggressive roadmap of the earlier years. Existing customers are not being forced to migrate, and SAP has communicated continued support. New prospects should weigh the slower roadmap against ByDesign's genuine German localisation advantages.
How does the DACH partner picture compare?
D365 Business Central's DACH partner ecosystem is several times larger and far more diverse. KUMAVISION, Cosmo Consult, To-Increase, NAVAX, Awara IT and dozens of regional specialists give buyers a genuine competitive choice and industry-specialist depth. ByDesign's DACH partner base is smaller but very experienced in SAP-anchored Mittelstand patterns. Geographic proximity and industry experience often matter more than absolute network size, but the broader Business Central choice is a structural advantage for buyers who want competitive sourcing.
How important is the AppSource ecosystem in practice?
Quite important. AppSource gives Business Central buyers access to hundreds of industry-specific extensions — document capture, expense management, advanced warehouse, food traceability, manufacturing scheduling — installable in days. ByDesign's extension marketplace is materially smaller. For Mittelstand operators with niche industry requirements, the AppSource depth can be decisive.
What about total cost of ownership over five years?
For a comparable 100-user mid-market operator, both products land in a similar range — roughly EUR 600,000 to 1.5 million all-in over five years. The decision is rarely cost-driven; it is fit-driven, with Business Central winning on partner choice and Microsoft-stack alignment, and ByDesign winning on SAP brand alignment and native German compliance.