Permissions to see and manage sentinel workspace in Defender XDR

Hi Team,

One of my customers recently completed their Sentinel → Defender portal migration. Initially, I didn’t have access to view the Defender portal, but after the migration I was assigned the Security Operator role in Entra (via PIM), which now allows me to access the Defender portal.However, when I navigate to:
Defender portal → System → Settings → Microsoft Sentinel → Workspaces. I’m unable to view the available workspaces. The portal shows an insufficient permissions error, and I also cannot switch the primary/secondary workspace. Could you please advise on the exact permissions/roles required to: View the Sentinel workspace list in Defender, and Switch the primary workspace? Thanks in advance