Meaning of the change indicators UN/EDIFACT
   
Message types:
a plus sign (+) for an addition
an asterisk (*) for an amendment to structure
a vertical bar (|) for changes to text for descriptions, notes and functions
a letter X (X) for marked for deletion
a letter R (R) for a message whose structure has been completely recast. No other change symbols shall be used with these messages
Segments:
a plus sign (+) for an addition
an asterisk (*) for an amendment to structure
a hash sign (#) for changes to names
a vertical bar (|) for changes to text for functional descriptions or notes
an X sign (X) for marked for deletion
Composites:
a plus sign (+) for an addition
an asterisk (*) for an amendment to structure
a hash sign (#) for changes to names
a vertical bar (|) for changes to text for descriptions, notes and functions
an X sign (X) for marked for deletion
Simple data elements:
a plus sign (+) for an addition
an asterisk (*) for an amendment to structure
a hash sign (#) for changes to names
a vertical bar (|) for changes to text for descriptions, notes and functions
a minus sign (-) for marked for deletion (within either batch or interactive messages)
an X sign (X) for marked for deletion (within both batch and interactive messages)
Codelists and codes:
a plus sign (+) for an addition
an asterisk (*) for an addition/subtraction/change to an entry for a particular data element
a hash sign (#) for changes to names
a vertical bar (|) for changes to text for descriptions, notes and functions
a X sign (X) for marked for deletion