Tag 45

RefSeqNum

Abbreviation: RefSeqNum

TypeSeqNum

Tag45

AddedFIX.2.7

Used in2 messages

Reference message sequence number

Single field (key=value)

45=42

In a FIX message (Reject)

8=FIX.4.4 | 9=... | 35=3 | 49=SENDER | 56=TARGET | 34=1 | 52=20240101-09:30:00.000 | … | 45=42 | … | 10=...

Fields are delimited by SOH (ASCII 0x01), shown here as " | ". The highlighted field 45=42 is this field's position in the message.