Resource Sharing visible in Primo even if the user aren't logged in
When we started using the Resource Sharing form in Primo we noticed that it's only visible for users that are logged in. It would be preferable to at least have the option to make the button for Resource Sharing to be visible even for user that haven't logged in yet. A solution would be that a prompt for logging in would appear either when you click on the button or when you press send. We are afraid that many users will miss the option to order resource sharing because they haven't logged in yet.

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Stacey van Groll commented
Have you tried the Partner setting for "Enable service for guest user - Indicates whether the link to the partner displays in Primo when the patron is not logged in."?
We don't have this active usually, as we offer resource sharing only for certain logged in patrons, but I tested it in Sandbox and it correctly caused the option to appear in Primo Get It.