The List Execute (L) message type is used by institutions to instruct the broker to begin execution of a previously submitted list.
| Tag | Field Name | Req'd | Comments | ||
|---|---|---|---|---|---|
| <Standard Message Header> | Y | MsgType = L |
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| 66 | ListID | Y | Must be unique, by customer, for the day |
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| 105 | WaveNo | N | |||
| 58 | Text | N | |||
| <Standard Message Trailer> | Y | ||||