RISE with SAP Migration Timeline Estimates: From Assessment to Go-Live

Once the project is approved and the budget locked, the board's main question is: when do we go live? Without a clear map of the phases, that question is hard to answer, particularly with the SAP ECC support deadline ticking down. This article sets out the RISE with SAP migration timeline phase by phase, using official SAP data as the reference, and counts back to the latest possible date to start your ERP migration to the cloud project.

In short, the RISE with SAP migration timeline from assessment to go-live follows the six SAP Activate phases: Discover, Prepare, Explore, Realize, Deploy, and Run. SAP's official estimates are 12–15 months for a brownfield conversion, 12–18 months for bluefield, and 15–21 months end-to-end for greenfield. Some projects have finished in 5–6 months.

How Long Does RISE with SAP Migration Take from Assessment to Go-Live?

In the field, the range is wide. Bertrandt AG, a German engineering services company, went live on SAP S/4HANA Cloud Private Edition in under 5 months from kick-off (official SAP case study, May 2025). In Indonesia, PT Tigaraksa Satria Tbk started Project SUNRISE on 8 July 2024 and went live on 6 January 2025, roughly six months later (Liputan6, January 2025).

Neither example is the general standard. Bertrandt used a two-step approach, moving the infrastructure first with a lift-and-shift method before transitioning to cloud ERP, and four business units went live simultaneously. Tigaraksa Satria implemented RISE with SAP S/4HANA Private Cloud Edition on Google Cloud Platform for a single distribution company. Limited scope and a managed approach allow for a faster process, whereas projects with many entities and custom code usually take longer.

The main factor determining duration is the migration path. A brownfield path that converts a running system takes a different amount of time from greenfield, which rebuilds from standard. RISE with SAP bundles SAP S/4HANA Cloud Private Edition, cloud infrastructure, and transition services into a single subscription. Full details are available in our overview of the components of RISE with SAP.

The Six RISE with SAP Migration Phases and Estimated Duration for Each

The six phases run in sequence: Discover, Prepare, Explore, Realize, Deploy, and Run. SAP provides duration estimates per phase in the SAP S/4HANA Transformation Pocket Guide (SAP Community, August 2024) for the Discover through Deploy phases. The Run phase has no official estimate. The table below uses the brownfield conversion path as its example.

Added together, the first five phases match SAP's official total for the brownfield path. The Run phase rests on a different basis because SAP does not publish an estimate for it. The hypercare duration is an implementation practice estimate, not an official figure.

Estimated durations per phase also differ by migration path. For bluefield (selective data transition), SAP notes that the Realize phase can run 6–9 months, making it the longest phase. In practice, the duration of Realize is heavily influenced by how many trial data migration cycles have to be repeated, since data quality issues often only surface during the first trial migration.

What Is the Latest Kick-Off Date to Finish Before the ECC 2027 Deadline?

Mainstream maintenance for SAP Business Suite 7, including SAP ECC, ends on 31 December 2027 (support.sap.com). Counting back the 12–15 months of a brownfield conversion, the latest kick-off falls between late September and late December 2026. This is a figure derived from SAP's official numbers, not a date set by SAP.

That calculation does not yet include pre-project preparation. Partner evaluation and contract negotiation usually take 2–3 months before kick-off, so a realistic decision needs to be made between the middle and the third quarter of 2026. The greenfield path is tighter, because the 21-month boundary already passed at the end of March 2026, and the fastest scenario requires kick-off no later than the end of September 2026.

The four main factors that tend to stretch the timeline are the volume of custom code, master data quality, the number of company codes involved, and the availability of the internal team during UAT.

It is worth noting that SAP's estimates are indicative and assume near-ideal conditions. Go-live delays most often happen because testing cycles are cut short to chase a deadline. Delaying kick-off also raises the risk of consultant capacity running short as the deadline nears. Leave a buffer so that go-live does not coincide with year-end closing.

FAQ (Frequently Asked Questions)

How long does RISE with SAP migration take?

According to the SAP S/4HANA Transformation Pocket Guide (SAP, 2024), indicative end-to-end durations are 12–15 months for a brownfield conversion, 12–18 months for bluefield, and 15–21 months for a single-wave greenfield. Public examples in Indonesia show that projects can go live in around six months.

Which phase takes the longest in a SAP cloud migration?

It depends on the path. SAP's indicative table puts Realize as the longest phase for bluefield (6–9 months); for brownfield, it is Deploy that is listed at more than 3 months. In practice, the testing cycles and trial data migration within Realize are what most often push schedules back, because data quality is only truly tested there.

What is the latest kick-off date to finish before the ECC 2027 deadline?

Counting back from 31 December 2027, a 12–15 month brownfield conversion requires kick-off by roughly late September to December 2026, not counting partner selection and contracting, which in practice take 2–3 months. The 15–21 month greenfield path requires an even earlier start.

Conclusion

There is no single migration timeline; duration is shaped by the path, the scope, and data quality. The range is clear (12–21 months depending on the path), the deadline is not moving, and what matters most is starting early enough for testing to run properly. As an SAP Platinum Partner recognised as Best RISE and Best Cloud Partner (SEA) 2021, Soltius helps companies build and run a realistic migration timeline, from assessment through to go-live and hypercare.

To discuss your company's RISE with SAP and SAP S/4HANA Cloud Private Edition migration plan, please visit soltius.co.id.