How to add Supplier Products to an Existing Category Stevie Updated September 08, 2015 07:08 Follow 1. Search for a particular Supplier Product 2. Click ADD TO CATEGORY 3. Click the Select button for the appropriate Category, and then close the window. Related articles How to Book a Supplier Product How to find Products How to Create a New Category Agent Marketplace FAQ How to connect with Viator Comments 0 comments Please sign in to leave a comment.