Leading an SAP S/4HANA transformation with near‑zero downtime
ElkjøpPowering Elkjøp’s SAP S/4HANA transformation with near-zero downtime
Elkjøp, the Nordics’ largest consumer electronics retailer, embarked on a major transformation to modernize its SAP landscape and enable future innovation. Operating a complex, always-on business across multiple countries, the company required a seamless transition to SAP S/4HANA without compromising daily operations. Together, Accenture & SNP delivered a single-step conversion to SAP S/4HANA on RISE combining end-to-end program leadership with advanced data migration expertise.
The challenge
Elkjøp’s transformation combined scale, complexity and strict operational constraints:
- Business-critical uptime: 24/7 retail operations with no tolerance for disruption
- Complex system landscape: Deep integration across SAP CAR, EWM, TM, POS, commerce, and supply chain systems
- Large-scale transformation: Simultaneous ECC conversion and move to SAP RISE
- Tight downtime window: Migration to be executed within hours, not days
- High data volumes: Migration of ~30 TB of data across the SAP landscape, including a 10 TB migration scope managed by SNP
The solution
Elkjøp, Accenture and SNP delivered an integrated transformation program, combining complementary strengths with defined roles and responsibilities.
Elkjøp and Accenture led the overall transformation delivery, including program governance, system integration and business process alignment, while SNP executed a 10 TB data transformation using the Kyano® platform and its Near-Zero Downtime (NZD) approach.
This combined approach enabled:
- A single-step conversion to SAP S/4HANA on RISE
- A high-speed, low risk migration within strict downtime constraints
- A controlled and validated data transition across a highly complex IT landscape
- Seamless coordination across global, hybrid delivery teams
SNP & Accenture
This program highlights the strength of the partnership of SNP and Accenture:
- SNP: Industry-leading data transformation platform (Kyano®) and NZD execution
- Accenture: Transformation leadership, industry expertise, and global delivery capabilities
Together, we delivered a fast, secure, and business-focused transformation for one of the regions’ most demanding retail environments.
The result
The program combined scale, speed, and operational resilience to deliver a standout transformation:
- Accelerated timeline: Just 14 months from contract to go-live – significantly faster than industry benchmark
- Faster path to RISE: Rapid adoption of SAP RISE, helping unlock innovation sooner
- Near-zero downtime achieved: Migration completed within ~18.5 hours (well below the 24-hour target)
- On time and on budget: Strong program execution across a highly complex landscape
- Seamless go-live: Stable transition with uninterrupted retail operations
Beyond technical success, the program positioned Elkjøp for long-term innovation by establishing a scalable, cloud-enabled SAP foundation.
This project demonstrates how customers can accelerate their move to SAP RISE, reducing transformation timelines, realizing value sooner and all while maintaining operational stability.
Benefits
- Future-ready platform: Access to ongoing SAP innovation via S/4HANA on RISE
- Operational continuity: Transformation completed with negligible business disruption
- Improved data confidence: High integrity through structured migration and validation
- Simplified landscape: Greater alignment across supply chain, commerce and retail systems
- Scalable foundation: Support for future growth and new digital capabilities
Key facts
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Challenge
ECC to SAP S/4HANA
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Countries
5
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Go-live
April 2026
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Project duration
14 months
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Data volume
30 TB migrated
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Total downtime
18.5 hours
SNP delivered strongly throughout the program and played a critical role in making our SAP S/4HANA migration possible within a very short downtime window.
Erik Nordvall
Head of Enterprise Solutions, Elkjøp
About Elkjøp
Elkjøp is the largest consumer electronics and home appliances retailer in the Nordic countries, operating over 400 stores and serving millions of customers across Europe. Founded in Norway in 1962, the company is owned by the British retail group Currys plc and has built a reputation for combining expert advice, competitive pricing, and a wide product assortment to serve both everyday consumers and technology enthusiasts.
