|  | RFF-DTM | 
        
          |  | Reference | 
        
          | 
            
              |  | Function: | To specify a reference. |  | 
        
          |  |  | * |  |  | 
        
          |  | Reference |  |  |  |  |  | 
        
          |  | Reference code qualifier |  |  |  |  | 
            
              |  | ACE | = | Related document number |  | 
        
          |  | Reference identifier |  |  |  |  | 
            
              |  | Reference to related document number |  
              |  | This entity is used to reference to a document related to the invoice, e.g. an accounting number. This entity is bilaterally agreed between the partners. |  | 
        
          | 
            
              |  | Segment notes: |  |  
              |  | Status-AT N Status-DK N
 Status-FR N
 Status-DE O
 Status-NL N
 Status-CH N
 Status-SE N
 Status-UK N
 Status-PL N
 Status-CZ N
 Status-HU N
 |  |  
              | I |  |  
              |  | Example: | RFF+ACE:8799' |  |  
              |  | Reference to document no. 8799. |  |  |