No, there is no cost to submit proposals in Euna Procurement!
To participate in solicitations hosted on Euna Procurement, you'll need to register for a Euna Procurement account via an organization's procurement portal. However, once you are registered, you can submit bids across all procurement portals on Euna Procurement.
If you are interested in Euna Procurement's Pro Supplier features, please check out the Euna Supplier Network: Euna Supplier Network
If you would like to register for an account, please reference our Vendor Registration support article.