Proposals is a functionality where a user can convert the existing cart into a proposal. Anyone know if Hybris provides that OOTB?
If you are using a B2C accelerator check Commerce Quotes.
Commerce Quotes enables buyers to create quotes and negotiate the final price of an order using the storefront.
If you are using a B2B accelerator check Customer/Merchant Approval.
Depending on the configuration of the B2B store, orders may require approval from the customer's organization, from the merchant, or both.