Reports and dashboards are shared through folders. You share the folder, not the report or dashboard itself. To let others work with your report or dashboard, give them Viewer, Editor or Manager access to the folder where the report or dashboard is stored.
Available in: Salesforce Classic
Available in: All editions except Database.com
Users can’t share report and dashboard folders in Lightning Experience. All sharing permissions set on folders in Salesforce Classic are obeyed in Lightning Experience.
This set of sharing documentation is for orgs with Enhanced Analytics Folder Sharing enabled. Enhanced Analytics Folder Sharing grants report and dashboard folders detailed access levels. If your org was created after the Summer ’13 Salesforce release, you already have Enhanced Analytics Folder Sharing. If your org doesn't have Enhanced Analytics Folder Sharing enabled, refer to Turn On Enhanced Sharing for Reports and Dashboards in the Salesforce help.
Share a Report or Dashboard Folder To enable others to use a report or a dashboard, share the folder it is in. Give each user, public group, or role the degree of access to the folder that makes sense for them.
Access Levels for Report and Dashboard Folders Each user, group, or role can have its own level of access to a report and dashboard folder. Viewers can see the data; Editors can determine what data is shown; and Managers can control access.
User Permissions for Sharing Reports and Dashboards Each level of access to a report or dashboard folder consists of a combination of specific user permissions. As an administrator, you can further fine-tune users' access to dashboards and reports by assigning or removing one or more permissions.