Project Support Analyse how the UPN and email domain change will impact systems and applications. Review applications in Groups 1, 2, and 3 and confirm how they match users (Object ID, UPN, Email). Document identity dependencies across Entra ID and connected services. Validate attribute updates flowing from SuccessFactors into Entra ID. Identify risks, required updates, and remediation steps for systems using UPN or Email. Work directly with application owners to confirm current behaviour and re