Successful run of the configuration test
After a successful run of the configuration test it should look like this:
Image 1: Successful run of the configuration test (click to enlarge)
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Workaround is to have users deactivate the pop-up blocker at least for their confluence domain as originating (and https://login.microsoftonline.com/ as domain of the pop-up if this can/has to be specified).
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