You can share your Dashboard with others but Alerts set on the dashboard cannot be shared.
Steps to enable Dashboard sharing:
Go to the “My Sourcing Boards” page where you can see all your sourcing boards.
Locate the desired board and click on the three dots in the top right corner. Select the "Open Share Settings" option from the dropdown menu.
This will redirect you to the "Share" page for that sourcing board. Select the relevant options as shown below and click on the "Save" button.