A Stanza handle is similar to a Twitter handle. It's the unique URL for your calendar.
Pick something that would make it easy for your members to find your timeline. For example, if your Stanza Calendar is for an organization named “Los Angeles Cyclists,” you might pick a handle like “lacyclists,” so your URL is: stanza.co/timeline/lacyclists.
Please note that no spaces are allowed in your Stanza name.