A lot of error can pop up when we deploy the report from AX one of them is "User does not have required permissions. Verify that sufficient permissions have been granted and Windows User Account Control (UAC) restrictions have been addressed.", below are some few place that you can check whether it's already being configured properly:
- Check whether UAC has been properly set up (disable it for the fastest way)
- Set respective user as administrator in SSRS server.
- Check whether respective user has access rights to the SSRS folder
The easiest way to resolve this was to add the respective users to the whole SSRS site as "System admin" role on below location at your SSRS report manager