Stakeholders can invite their Suppliers and subcontractors for free via the ZDHC Gateway. Since the ZDHC Gateway and the Supplier Platform share the same login credentials, Suppliers and subcontractors can access the Supplier Platform once they are registered to the ZDHC Gateway and have set their Supplier Profile. Go to the ZDHC Gateway and invite your Suppliers now!
For more information, read the following article: Inviting a Formulator/Supplier (Suppliers).