Field SecondaryAllocID (793) - FIX Protocol FIX.5.0SP1
Secondary allocation identifier. Unlike the AllocID (70), this can be shared across a number of allocation instruction or allocation report messages, thereby making it possible to pass an identifier for an original allocation message on multiple messages (e.g. from one party to a second to a third, across cancel and replace messages etc.).
Added in protocol FIX.4.4