HopRefID

Reference identifier assigned by HopCompID (628) associated with the message sent. It is recommended that this value be the MsgSeqNum (34) of the message sent by the third party. Applicable when messages are communicated/re-distributed via third parties which function as service bureaus or 'hubs'. Only applicable if OnBehalfOfCompID (115) is being used.由HopCompID（628）分配的参考标识符与发送的消息相关联。建议该值应为第三方发送的消息的MsgSeqNum（34）。当消息通过充当服务局或‘枢纽’的第三方进行通信/重新分配时适用。仅当使用OnBehalfOfCompID（115）时适用。