When you're viewing a lender or offer in the Lender Marketplace, while you can add any of these to your financing page, it will require a unique application URL.
Unique application links are often associated with Merchant-Based Lenders, who will require you to enroll as a dealer in their network to offer that loan to your customer.
Other loan types, such as a personal loan or credit card offer, require you to have the application's public URL, which you can typically find on their website.
If you're unsure which applies to a particular offer, that's ok! You can open a chat, and support can help you.