How can I create a Quick Link for Snapchat?

Snap won't let you attach redirecting links to stories. The following workaround disables the redirects until you get the link attached, and then re-enables them after you create your story.

Create your Quick Link to be attached to your Snap story.
On the Configure Options section, do the following:
a. Add the key $always_deeplink, and the value of false in the Deep Linking tab.
b. Enable a Deepview on the iOS platform in the Redirects tab.
Attach this link to your Snap story.
Come back and edit the Quick Link to:
a. Delete the $always_deeplink key/value from the Deep Linking tab.
b. Remove the Deepview on iOS in the Redirects tab.