Allow Partial in ShipHero
ShipHero has the following option within each order to "Allow Partial". To enable, select "Allow Partial" within an order and select "Update Details" at bottom of the Details section.
Allow Partial will enable ShipHero to fulfill all items that are ready to ship.
Items that are not ready to ship (Preorder, overselling, etc) will remain in the order until they are ready to ship.
For questions around Overselling, Preorders, Etc. check out this Knowledge Base Article that details that process