I am listed as MANAGER
in a group that I am managing on a Google Cloud Platform organisation via the IAM Groups interface on https://console.cloud.google.com/iam-admin/groups.
But they delete icon is greyed out, and displaying a message:
You need the following permissions to be granted by a group administrator for this action: Required permission(s):
cloudidentity.memberships.remoMemberRole
The message links to a documentation, that has no helpful information nor mentions the problem described in the message.
AFAIK, as a manager of a group, one should be able to add and remove members.
Can you help me fix or explain this issue?