Quick Setup
Click Add gadget and type Custom Charts in the Search
Select the 4th gadget from the list, Custom Charts Shared Dashboard
Close the pop-up, and you’ll see all Custom Charts gadgets you’ve added to the Dashboard already laid out on the left side
On the right side of the gadget, find the Link Access Permission section and select an option for who can access the Dashboard
In the bottom right hand corner of the gadget or macro, click Save
Once the Dashboard has been published, click Copy link on the gadget to get the shareable link