|  | RFF-DTM | 
        
          |  | Reference | 
        
          | 
            
              |  | Function: | To specify a reference. |  | 
        
          |  |  | * |  |  | 
        
          |  | Reference |  |  |  |  |  | 
        
          |  | Reference code qualifier |  |  |  |  | 
            
              |  | AAK | = | Despatch advice number |  | 
        
          |  | Reference identifier |  |  |  |  | 
            
              |  | Reference to despatch advice |  
              |  | The despatch advice reference number. The despatch advice number is generated by the issuer of the despatch advice. The number being refered in the invoice is the despatch advice on which the invoice is based. |  | 
        
          | 
            
              |  | Segment status by country: |  
              |  | D |  
              |  | This segment  will be used in case of  the same despatch advice number concerning all the items covered by the invoice.  In case of the different despatch advice numbers of the specific items, the despatch advice numbers will be provided at the line level  in  SG26. |  
              |  |  |  |