Here are some brief set-up instructions:
For Desktop Studies
Use the Figma prototype link such as https://www.figma.com/proto/xxxxxx-yyyyyy
in the starting URL section of the study setup.
For Mobile Studies
Use the Figma prototype link such as https://www.figma.com/proto/xxxxxx-yyyyyy
in the starting URL section of the study setup.
Be sure to have a URL that can be seen by 'anyone', so that participants will be able to see your prototype:
Pro Tip: Copy prototype to a new board in Figma before testing to avoid giant file size!