A code indicating acknowledgement, or rejection (the action taken) of a subject interchange, or part of the subject interchange.
Type
String (AN)
Length
Max 3 / Min 1
Codes
<> 1
Acknowledged (this level and all lower levels)
<> 2
Acknowledged - errors detected and reported
<> 3
One or more rejected - next lower level
<> 4
This level and all lower levels rejected
The corresponding referenced-level and all its lower referenced-levels are rejected. One or more errors are reported at this reporting-level or a lower reporting- level.
<> 5
UNB/UNZ accepted
<> 6
UNB/UNZ rejected
<> 7
This level acknowledged, next lower level acknowledged if not explicitly rejected
The corresponding referenced-level is acknowledged. All messages or functional groups at the next lower referenced-level are acknowledged except those explicitly reported as rejected at the next lower reporting-level in this CONTRL message.
<> 8
Interchange received
The subject interchange has been received. UNB, UNZ and UNA if present, is acknowledged. The other parts of the interchange will be acknowledged or rejected in a subsequent CONTRL message.
