UNH To head, identify and specify a message. (Max 1) Required
- 
                                                    unh2 – 
                                                    
- 
                                                                unh21 – 
                                                                
Type: an, Max Length: 6 (Required) - 
                                                                unh22 – 
                                                                
Type: an, Max Length: 3 (Required) - 
                                                                unh23 – 
                                                                
Type: an, Max Length: 3 (Required) - 
                                                                unh24 – 
                                                                
Type: an, Max Length: 3 (Required) - 
                                                                unh25 – 
                                                                
Type: an, Max Length: 6 - 
                                                                unh26 – 
                                                                
Type: an, Max Length: 6 - 
                                                                unh25 – 
                                                                
Type: an, Max Length: 6 
 - 
                                                                unh21 – 
                                                                
 - 
                                                    unh4 – 
                                                    
- 
                                                                unh41 – 
                                                                
Type: n, Max Length: 2 (Required) - 
                                                                unh42 – 
                                                                
Type: a, Max Length: 
 - 
                                                                unh41 – 
                                                                
 - 
                                                    unh5 – 
                                                    
- 
                                                                unh51 – 
                                                                
Type: an, Max Length: 14 (Required) - 
                                                                unh52 – 
                                                                
Type: an, Max Length: 3 - 
                                                                unh53 – 
                                                                
Type: an, Max Length: 3 - 
                                                                unh54 – 
                                                                
Type: an, Max Length: 3 
 - 
                                                                unh51 – 
                                                                
 - 
                                                    unh6 – 
                                                    
- 
                                                                unh61 – 
                                                                
Type: an, Max Length: 14 (Required) - 
                                                                unh62 – 
                                                                
Type: an, Max Length: 3 - 
                                                                unh63 – 
                                                                
Type: an, Max Length: 3 - 
                                                                unh64 – 
                                                                
Type: an, Max Length: 3 
 - 
                                                                unh61 – 
                                                                
 - 
                                                    unh7 – 
                                                    
- 
                                                                unh71 – 
                                                                
Type: an, Max Length: 14 (Required) - 
                                                                unh72 – 
                                                                
Type: an, Max Length: 3 - 
                                                                unh73 – 
                                                                
Type: an, Max Length: 3 - 
                                                                unh74 – 
                                                                
Type: an, Max Length: 3 
 - 
                                                                unh71 – 
                                                                
 - 
                                                    unh1 – 
                                                    
Type: an, Max Length: 14 - 
                                                    unh3 – 
                                                    
Type: an, Max Length: 35 
BGM To indicate the type and function of a message and to transmit the identifying number. (Max 1) Required
- 
                                                    1004 – Reference number assigned to the document/message by the issuer.
                                                    
Type: an, Max Length: 35 - 
                                                    1225 – Code indicating the function of the message.
                                                    
Type: an, Max Length: 3Valid Codes:1– Cancellation2– Addition3– Deletion4– Change5– Replace6– Confirmation7– Duplicate8– Status9– Original10– Not found11– Response12– Not processed13– Request14– Advance notification15– Reminder16– Proposal17– Cancel, to be reissued18– Reissue19– Seller initiated change20– Replace heading section only21– Replace item detail and summary only22– Final transmission23– Transaction on hold24– Delivery instruction25– Forecast26– Delivery instruction and forecast27– Not accepted28– Accepted, with amendment in heading section29– Accepted without amendment30– Accepted, with amendment in detail section31– Copy32– Approval33– Change in heading section34– Accepted with amendment35– Retransmission36– Change in detail section37– Reversal of a debit38– Reversal of a credit39– Reversal for cancellation40– Request for deletion41– Finishing/closing order42– Confirmation via specific means43– Additional transmission44– Accepted without reserves45– Accepted with reserves46– Provisional47– Definitive48– Accepted, contents rejected49– Settled dispute50– Withdraw51– Authorisation52– Proposed amendment53– Test
 - 
                                                    4343 – Code specifying the type of acknowledgement required or transmitted.
                                                    
Type: an, Max Length: 3Valid Codes:AA– Debit adviceAB– Message acknowledgementAC– Acknowledge - with detail and changeAD– Acknowledge - with detail, no changeAF– Debit advice/message acknowledgementAG– AuthenticationAP– AcceptedCA– Conditionally acceptedCO– Confirmation of measurementsNA– No acknowledgment neededRE– Rejected
 
RFF To specify a reference. (Max 1) Required
DTM To specify date, and/or time, or period. (Max 1) Required
AUT To specify results of the application of an authentification procedure. (Max 2)
- 
                                                    9280 – The result of the application of an algorithm to the content of data element in a message.
                                                    
Type: an, Max Length: 35 (Required) - 
                                                    9282 – Identifies the cryptographic key used to calculate the validation result.
                                                    
Type: an, Max Length: 35 
AGR To specify the agreement details. (Max 2)
UNS (Max 1) Required
CNT To provide control total. (Max 10)
UNT MessageTrailer (Max 1) Required
- 
                                                    9900 – segmentsNumber
                                                    
Type: n, Max Length: 10 (Required) - 
                                                    9901 – msgRefNumber
                                                    
Type: an, Max Length: 14 (Required)