Draw the separation boundary
Make every shared dependency visible and assign an owner.
SAP Carve Out Technical Checklist for separations where Day 1 has to work before every dependency can disappear.
Carve-outs become risky when shared data, interfaces, users and operational dependencies are discovered after the legal or commercial timeline is already fixed.
Use the steps to move from assumption to evidence and then to a decision.
Make every shared dependency visible and assign an owner.
Decide what must be separated now, what can be temporarily shared and under which controls.
Test finance, supply chain, users, interfaces and reporting against Day 1 scenarios.
Treat temporary services and duplicated controls as work with an end date, not a permanent architecture.
We keep deliverables tied to decisions, delivery and ownership. The exact format changes with the workstream; these are the outputs we would expect to leave behind.
Bring us in when the transaction timeline is moving faster than technical discovery or a workstream needs independent separation ownership.
The current problem, the outcome you need and what cannot be disrupted are enough to start.