| Tag | Field Name | Req'd | Comments | 
                           
                              | <MessageHeader> | Y | MsgType <35> = AU | 
                           
                              | 664 | ConfirmID | Y |  | 
                           
                              | 75 | TradeDate | Y |  | 
                           
                              | 60 | TransactTime | Y | Date/Time Allocation Instruction Ack generated | 
                           
                              | 940 | AffirmStatus | Y |  | 
                           
                              | 774 | ConfirmRejReason | N | Required for ConfirmStatus = 1 (rejected) | 
                           
                              | 573 | MatchStatus | N | Denotes whether the financial details provided on the Confirmation were successfully matched. | 
                           
                              | 58 | Text | N | Can include explanation for AllocRejCode = 7 (other) | 
                           
                              | 354 | EncodedTextLen | N | Must be set if EncodedText field is specified and must immediately precede it. | 
                           
                              | 355 | EncodedText | N | Encoded (non-ASCII characters) representation of the Text field in the encoded format specified via the MessageEncoding field. | 
                           
                              | <MessageTrailer> | Y |   |