Can someone tell me what's the difference between piadmin and piadmins in Point/ Data security? Thank you!

piadmin is a specific account; piadmins is a PI Group with potentially multiple accounts assigned to it; 'piadmin' account is usually added to the 'piadmins' group

thank you for your reply

Hi RADONAMANDIMBY Imavomialy​ ,

Please refer to Built-in PI identities, users, and groups (aveva.com).

You can take away permissions from piadmins group. But piadmin will always have permissions.