What happens when one vendor in a split order cannot fulfill its portion?

If one vendor in a split order can't fulfil its portion, that portion can be reassigned to another vendor who can, or refunded for that portion only — without disturbing the rest of the order, which proceeds normally. Because each vendor's part is its own fulfilment, a problem with one doesn't sink the whole order: the customer still receives what the other vendor(s) can fulfil,…

If one vendor in a split order can't fulfil its portion, that portion can be reassigned to another vendor who can, or refunded for that portion only — without disturbing the rest of the order, which proceeds normally. Because each vendor's part is its own fulfilment, a problem with one doesn't sink the whole order: the customer still receives what the other vendor(s) can fulfil, and only the affected portion is reassigned or refunded. This isolation is a key benefit of modeling split fulfilment as independent portions.