05/14/2021
(ASC X12) I28 Interconnect Mailbag Control Number
TYPE=N0 MIN=1 MAX=9
This number uniquely identifies the interconnect mailbag to the interconnect entity sender; It is assigned by the interconnect entity sender; Together with the sender ID, it uniquely identifies the interconnect mailbag to the interconnect entity receiver; It is suggested that the interconnect entity sender and the interconnect entity receiver be able to maintain an audit trail of interconnect mailbags using this number; Each interconnect mailbag that is created by the sender should contain a unique control number; Interconnect mailbags that require retransmission should not have their control number changed
Appears in
| ANSI X12 EDI IA | Interconnect Mailbag Acknowledgment |
| ANSI X12 EDI IH | Interconnect Mailbag Header |
| ANSI X12 EDI IT | Interconnect Mailbag Trailer |
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