Type: NumInGroup
Number of delivery instruction fields in repeating group.
Note this field was removed in FIX 4.1 and reinstated in FIX 4.4.
Added in protocol FIX.2.7
See in: FIX.4.0, FIX.4.2, FIX.4.3, FIX.5.0, FIX.5.0SP1, FIX.5.0SP2, FIX.5.0SP2 EP240.