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Comprehensive dictionary of standard X12 EDI segments used in logistics and transportation workflows.
Starts the interchange envelope. Defines the sender, receiver, controls, and separator characters used throughout the transmission.
Usage Notes: The ISA segment is fixed-width (106 characters). The delimiters (element separator at char 4, component separator at char 104, and segment terminator at char 105) are defined by their occurrence within this segment.
ISA*00* *00* *ZZ*SHIPPER1 *ZZ*CARRIER1 *260710*2015*U*00401*000000204*0*T*:~
| ID | Name | Req | Type | Len | Description |
|---|---|---|---|---|---|
| ISA01 | Authorization Info Qualifier | M | ID | 2/2 | Indicates the type of authorization information in ISA02 (typically "00" for No Authorization). |
| ISA02 | Authorization Information | M | AN | 10/10 | Authorization information or spaces. |
| ISA03 | Security Info Qualifier | M | ID | 2/2 | Indicates the type of security information in ISA04 (typically "00" for No Security Information). |
| ISA04 | Security Information | M | AN | 10/10 | Security information or spaces. |
| ISA05 | Sender ID Qualifier | M | ID | 2/2 | Qualifies the sender ID, e.g., "ZZ" (Mutually Defined) or "02" (SCAC). |
| ISA06 | Interchange Sender ID | M | AN | 15/15 | Sender ID, padded with spaces. |
| ISA07 | Receiver ID Qualifier | M | ID | 2/2 | Qualifies the receiver ID, e.g., "ZZ" (Mutually Defined) or "02" (SCAC). |
| ISA08 | Interchange Receiver ID | M | AN | 15/15 | Receiver ID, padded with spaces. |
| ISA09 | Interchange Date | M | DT | 6/6 | Interchange creation date (YYMMDD). |
| ISA10 | Interchange Time | M | TM | 4/4 | Interchange creation time (HHMM). |
| ISA11 | Repetition Separator | M | ID | 1/1 | Repetition separator character (usually "U" or a separator char). |
| ISA12 | Control Version Number | M | ID | 5/5 | Interchange control standard version (e.g. "00401"). |
| ISA13 | Interchange Control Number | M | N0 | 9/9 | Control number uniquely identifying this interchange. |
| ISA14 | Acknowledgment Requested | M | ID | 1/1 | Request for interchange acknowledgment ("0" = None, "1" = Acknowledgment Requested). |
| ISA15 | Usage Indicator | M | ID | 1/1 | Indicator for test or production mode ("T" = Test, "P" = Production). |
| ISA16 | Component Element Separator | M | ID | 1/1 | Sub-element separator character (typically ":"). |