Show private data to unregistered users with a unique link

Hey there, thanks for posting! Check out this response Bubble User Types - Temporary User & Shopping Cart functionality - #2 by talbotnar

A simpler way might even be to turn off “find this in searches” for the Cart thing’s privacy rule, and store the Cart directly on the User as a field / pass the Cart directly to the page you’re linking to via the page’s “type of thing”.