Preparation (Confluence)
At least the Standard Plan is required. IUM4Cloud-Confluence does not work with the Free Plan.
Create an api token with the specified admin account (without scopes)

Create an api token for the organization (without scopes)

Create a new group with Confluence product access as guest (IUM Settings: Group Disable)

(this group should not have any further product access)
IUM does not allow more users in the IUM user group than the IUM license permits. In the free version, this is 5 test users.
Any excess users will be removed from the group!The existing normal user group should "not" be selected here.
Create a new group with Confluence product access as user (IUM Settings: Group Enable)

(this group should not have any further product access)Install IUM from the Marketplace
go to IUM Browser Extension for more informations
e instruct users to install the IUM browser extension
Now go to: Determination of user peak or IUM Configuration