Accountability should sit with identity governance leaders, application owners, and audit stakeholders together, because the decision affects lifecycle control, access risk, and compliance evidence at once. A migration of this scale cannot be left to infrastructure teams alone. It requires explicit ownership for scope, cutover sequencing, and control validation.
Why This Matters for Security Teams
SAP IDM sunset migration decisions are not just a tooling change. They determine who can create, approve, revoke, and evidence access during a period when identity controls are most likely to drift. When ownership is unclear, gaps appear in lifecycle governance, segregation of duties, and audit traceability. That is why NHI Management Group treats migration accountability as a governance issue, not an infrastructure task. The risk is amplified by the same patterns seen across non-human identity programs, where 97% of NHIs carry excessive privileges and only 5.7% of organisations have full visibility into service accounts, according to the Ultimate Guide to NHIs.
Security teams also need to align migration ownership with broader control frameworks. The NIST Cybersecurity Framework 2.0 places clear emphasis on governance, asset oversight, and protective controls, which makes it a useful reference point when deciding who signs off on identity platform retirement. In practice, accountability must sit with identity governance leaders because they own policy outcomes, with application owners because they understand business dependencies, and with audit stakeholders because they need defensible evidence that access decisions remained controlled. In practice, many security teams encounter migration failures only after access reviews, break-glass use, or cutover errors have already exposed control gaps.
How It Works in Practice
Effective accountability starts by separating decision rights from execution tasks. Identity governance leaders should own the migration policy, cutover criteria, and acceptance gates. Application owners should validate which SAP roles, interfaces, and downstream entitlements still need to function after sunset. Audit and compliance stakeholders should define what evidence is required to prove that approvals, revocations, and exceptions were handled correctly. Infrastructure teams can execute the technical work, but they should not be the final authority on business risk.
A practical model is to assign named owners across four decision points:
- Scope approval, to decide which SAP IDM functions move, retire, or are replaced
- Dependency review, to identify applications, service accounts, and integrations that rely on IDM outputs
- Cutover sign-off, to confirm fallback paths, rollback triggers, and access continuity
- Control validation, to verify logging, approvals, SoD checks, and revocation evidence
This approach aligns with the identity governance themes in the Ultimate Guide to NHIs, especially where access sprawl and weak offboarding create hidden risk. It also maps cleanly to the governance intent of the NIST Cybersecurity Framework 2.0, which expects ownership, traceability, and repeatable control operation. For organisations with complex SAP estates, the current guidance suggests treating sunset migration as a controlled identity transition, not a simple system decommission. These controls tend to break down when application dependencies are undocumented and no one has authority to veto a cutover that would weaken access assurance.
Common Variations and Edge Cases
Tighter accountability often increases coordination overhead, requiring organisations to balance speed against control assurance. That tradeoff becomes visible when the SAP IDM estate is deeply embedded in HR, ERP, or shared service workflows, because no single team sees the full impact of retirement decisions. In those environments, best practice is evolving toward a joint decision model with one executive owner, one operational owner, and one independent assurance owner.
There is no universal standard for this yet, but the most defensible pattern is to keep authority close to the risk. If the migration mainly changes provisioning logic, identity governance should lead. If it affects business-critical transactions or role mapping, application owners must co-own the decision. If the organisation is under audit pressure, compliance must define the evidence package before cutover, not after. Where third-party integrations or service accounts are involved, the same discipline should extend to non-human identities, because access revocation and credential rotation can fail silently. The clearest warning sign is when a team can describe the technical replacement but cannot name who is accountable for proving that access was removed everywhere it should have been.
Standards & Framework Alignment
This section maps relevant standards and security frameworks to the operational risks and controls described in this guidance.
OWASP Non-Human Identity Top 10 address the attack and risk surface, while NIST CSF 2.0 and NIST AI RMF set the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| OWASP Non-Human Identity Top 10 | NHI-01 | Migration accountability must cover ownership and lifecycle control for non-human identities. |
| NIST CSF 2.0 | GV.OV-01 | Governance oversight is central to accountable migration decisions and audit evidence. |
| NIST AI RMF | GOVERN | Accountability maps to governance, risk ownership, and documented oversight. |
Assign named owners for NHI lifecycle decisions and verify revocation paths before SAP IDM sunset cutover.
