How do I invite a supplier to register? November 01, 2019 20:42 Updated Click on Invite Supplier to invite a supplier to register and submit their information. How to invite suppliers to register from Admin supplier.io on Vimeo. Related articles How SIO Can Help You Source Diverse Suppliers Where do I find my saved projects? How do I track my current supplier's certification status? What do I do if I cannot login to Explorer?