Specific date of trade settlement (SettlementDate) in YYYYMMDD format.

If present, this field overrides SettlType (63). This field is required if the value of SettlType (63) is '6' (Future) or '8' (Sellers Option). This field must be omitted if the value of SettlType (63) is '7' (When and If Issued)

(expressed in local time at place of settlement)

Prior to FIX 4.4 this field was named "FutSettDate".