NOTE: This information is referenced from UN/EDIFACT and may not be
current. For the latest information please visit the UN/EDIFACT
web site.
CONTRL is a message syntactically acknowledging or rejecting, with error indication, a received interchange,
group, message, or package. A CONTRL message shall be used to:
acknowledge or reject a received interchange, group, message, or package and list any syntactical errors
or unsupported functionality contained therein, or