When an order arrives with a carrier service Endless doesn’t recognize, the Resolve carrier service dialog on the fulfillment now offers a checkbox: Map to for future orders. Tick it and the chosen mapping is saved as a custom carrier mapping for that integration, so the next order with the same external carrier name resolves on its own. Leaving the checkbox unchecked applies the carrier to just this fulfillment, same as before. The dialog also skips offering the checkbox if a mapping already exists for that external name. The Resolve shipping address dialog now reuses the same form as the regular Shipping Info editor, so the entry surface is one consistent surface instead of two.