Assign two or more owners to the group is the recommended practice to ensure group administration coverage when one person is unavailable.

Assigning two or more owners gives multiple named administrators who can manage membership and settings and it preserves audit trails and individual accountability. This approach avoids a single point of failure and keeps changes attributable to specific users which simplifies troubleshooting and compliance.

It is straightforward to implement in Cloud Identity or Workspace and it follows access management best practices by keeping human administrators on their own accounts rather than sharing credentials.

Use Cloud Identity group roles is not a complete answer because roles exist but the question asks how to ensure coverage. The practical solution is to assign multiple owners rather than relying on a generic mention of roles.

Create a shared service account for managers to use is incorrect because service accounts are intended for applications and not for shared human use. Sharing credentials reduces auditability and violates principles of least privilege and individual accountability.

Grant one owner and configure a delegated access account is also incorrect because a single owner creates a single point of failure and delegated access can be harder to manage and audit. Assigning multiple owners provides clearer redundancy and accountability.

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