d2d4660b__Business_Level_Message_Reject__FIX_Message_Type
[Event on Buy Side] sessionRejectedCancel [Description] The "Cancel Request" message is removed from pending order list on buy side. Sell side won't see the cancel request. [FIX Message Type] 
Order Cancel Request
N e w O r d e r S i n g l e
O r d e r C a n c e l R e q u e s t
O r d e r C a n c e l / R e p l a c e R e q u e s t
E x e c u t i o n R e p o r t
O r d e r C a n c e l R e j e c t
O r d e r S t a t u s R e q u e s t
Session Level or Business Level Message Reject
FIX Message Type