They mostly pull from the campaign and opportunity objects, but some also pull from meetings and activities (tasks).

As these are 'out of the box' reports, you will need to add additional criteria to identify solely your Reachdesk campaigns within these reports. We'd suggest using a naming convention to recognise these campaigns and report on separately where necessary.

Some users may not have permissions to download the package, or to view reports within the package, which may stop the download from working. This seems to be the case with Campaign Influence in particular.

The 'Sales User' permission set license needs to be assigned to anyone wanting to use Campaign Influence. Head to Permission Sets > Find the license called 'Sales User' and click on it > Hit 'Manage Assignments' > Add it to the users needing access.

Create a Permission Set for Campaign Influence too, e.g. name it as "Campaign Influence", add "Campaign Influence" permission to the above permission set, and assign it to yourself/the relevant users.

Please make sure the Permission set has a license assigned

and your user has this assigned to the user profile: 

Those wishing to use the dashboards will need to have the right permissions (relating to dashboards) turned on in their User Profiles.

We use a mixture of campaign influence and primary campaign source to pull these reports. Not all organisations use both of these models, so you may need to turn those measures on ahead of downloading. If not (and you don't want to!), you just won't get those reports.

For ROI reporting, you will need to input campaign costs to get an accurate figure on returns (as these reports relate costs back to value of opportunities generated).