To identify the beginning of a specific message and to allow the identification of a subject for the message.
Reference number or identification number as defined for a particular Transaction Set, or as specified by the Reference Number Qualifier.
MIT01 contains the message number.
A free-form description to clarify the related data elements and their content.
MIT02 contains the message subject.
Definition of the maximum number of characters per line that can be expected in the message text.
MIT03 default is 80 characters.
Definition of the maximum number of lines per page that can be expected in the message text.
MIT04 default is 66 lines.
