In P6, administrators should have the right to add from the selection of audit tables. There are a bunch that can be added. When they run the audit, it drops a report in the report section. If you have a customer who is interested in using the audit function, you may be able to field some basic questions. If for some reason they can’t see the report output, have them submit a SR. It could be derived from rights in the Organizational Breakdown Structure (OBS) in P6 or a myriad of other sections (UI views, profiles, etc). These are used few and far between, but the one that came up recently for one of mine, was an audit to see who made the changes to the project. Show as the first and only active table.