One new Pro account - other colleagues "unable" to log-in

Friends,

I have created one new Zoom Pro account with ID & Password - for use by multiple people.

My colleagues are "unable" to "Sign In" to this account from their computers using the ID & Password - when I am "not" Signed In.

I need to resolve this issue today. My colleagues need to use this account.

Is there perhaps some 'setting' I incorrectly set or did not set when creating this account that is preventing my colleagues from "Signing In"?

Please help. Thank you, Lawrence