User still adding comments set to denied

Summary

Tableau Server permissions fail to block comments for specific users even when explicitly set to denied.

Tableau Server comment permissions not working as expected

A Tableau Server administrator reports that despite setting deny permissions for comments, a specific user continues to post comments on workbooks. This issue affects only one out of thousands of users, suggesting a permission override or bug.

Why permission issues matter

Unexpected behavior in Tableau permissions undermines governance of your reporting environment. When deny rules fail, users can unintentionally annotate data or share sensitive information through comments.

Steps to resolve this

Check whether the user inherits an allow permission through group membership that overrides the deny. In Tableau, explicit deny wins over allow, but verify all levels: project, workbook, and site role. Use the Effective Permissions viewer in Tableau Server.