Hi Meghan and Béline, When using the "filtering" option within new reports, when you save and publish the reports with filters, portal users are able to see the same filters tab and options that you see on the backend within the report when it is saved. They will see the same version of the report as you have saved on the backend and be able to uncheck and check off any fields that are available within the "Filters" tab when you save the report, which it sounds like you don't want.
The solution to utilize instead of "Filters" within the report is "Advanced Criteria" which is located within a report in Data > Change Report Data > Add Advanced Criteria. When using Advanced Criteria option, portal users will not be able to make any adjustments to the report (add or remove any advanced criteria options) nor do you have to worry about them being able to see information that shouldn't be shared with them as what they can only see will be pre-set for them.Report Equivalencies for Legacy Reports - reference the "Rearranging Data" section.
The filter that is not available under Advanced Features is the "Awarded Chain."
Certainly - It's an Event Details report under cross event reports.
All the best,