Know exactly where you stand — before you transform.
Download the Phase-0 SAP Migration Playbook — a 6–8 week diagnostic framework that surfaces the real cost, risk, and timeline of your S/4HANA program before you commit a single dollar. Built for SMEs up to $1B in revenue. No Big-4 overhead.
Get the Playbook
The 6 domains a defensible Phase-0 covers.
Every S/4HANA program lives or dies on how well these six areas are diagnosed before mobilization. The playbook walks through each — with checklists, questions, and red flags.
SAP landscape diagnostic
SAP licensing optimization
Data archiving & low-storage strategy
SAP Signavio process insights
Boomi integration assessment
AI strategy & OCM readiness
Executive podcast series
Watch the Phase-0 conversation before you commit.
Hosted by Sanketh Kandlikar. Subscribe: @SankethKandlikar
Series 01 — Phase 0, AMS & Net-Zero OPEX
Series 02 — Phase 0 to AMS Evolution
Series 03 — AMS & Cost Optimization
Voices from the advisor bench
The regional Phase-0 leads, in their own words.
Judith O'Callaghan (ANZ) and Sana Asher (NAM) run Phase-0 diagnostics across mid-market SAP customers — from business alignment to board-ready readouts. Posts collapsed by default — click see more to expand.
Questions we get about Phase-0
An SI's discovery is designed to mobilize a program. Phase-0 is designed to decide whether the program should mobilize at all — and on what terms. We are not the integrator. That independence is the point.
WorldITCOE leads every Phase-0 engagement as the prime advisor. Regional advisory is led by Judith O'Callaghan (ANZ) and Sana Asher (NAM). Named advisors. One accountable thread.
Four to six weeks, depending on landscape complexity and stakeholder availability. We do not stretch the timeline to expand the engagement.
That is a successful outcome. The output is a defensible position — go, re-scope, or delay — backed by evidence the board will accept. We have no incentive to push you into a program that shouldn't run.
Phase-0 is a fixed-scope, fixed-duration advisory engagement priced as a fraction of the program it shapes. The most common CFO question after Phase-0 is "why didn't we do this sooner?" — because the scope reductions and risk avoidance it surfaces typically pay for the engagement many times over.
Phase-0 is SAP-focused by design. If you have adjacent enterprise systems (Boomi, Signavio, Salesforce, ServiceNow) in scope, we cover them where they touch SAP.
Free · No login · 2 minutes
Phase-0 Readiness Score
20 quick questions across the six diagnostic domains your Phase-0 will cover. Get a score out of 100, your blind-spot map, and where to start — instant, no email required.
Executive Masterclass · Also from your Phase-0 advisors
Beyond the diagnostic. We also empower your leaders.
The advisors who lead your Phase-0 also run a two-day executive masterclass on leading SAP S/4HANA transformation through RISE and the Autonomous Enterprise — from strategy to successful delivery. Designed for CIOs, transformation directors and programme managers.
Judith O’Callaghan
Northpoint Integrity Services
Internationally recognised SAP transformation leader. Decades guiding boards through complex global programmes. Harvard Business School Online. 33k+ on LinkedIn.
Sana Asher
Author, The S/4HANA Playbook
30 years in the room on SAP transformations. Outcome-based Phase-0 advisor. Helps leaders make the ECC-to-S/4HANA move with grace, grit and gravity.
Delivered by SlashnSAP, in partnership with WorldITCOE. Free readiness snapshot · no payment at registration.
See the masterclass & get your snapshot →The architecture Phase-0 diagnoses
SAP is the core. Phase-0 diagnoses everything that touches it.
Custom code sprawl, integration debt, process bottlenecks, master data quality, licensing exposure — Phase-0 maps them all before your SI mobilises. What SI discovery workshops miss.
Six diagnostic domains · one integrated view of readiness.
Phase-0 covers every domain your SI won't.
Prefer to talk it through first?
Book a 20-minute Phase-0 readiness call with an advisor. No pitch, no obligation — just an honest read on whether your S/4HANA program is ready to mobilize.
Book a 20-min readiness call