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X12 TA1 Acknowledgment Error Codes

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The X12 TA1 technical acknowledgment reports the status of the processing of an interchange header and trailer. When the ISA and IEA of the X12-encoded message are valid, a positive TA1 ACK is sent, whatever the status of the other content is. If not, TA1 ACK with an error code is sent.

The X12 TA1 technical acknowledgment reports the status of the processing of an interchange header and trailer. EDI Tools for .NET AckMan raises TA1 automatically and only if they had been requested by the sender (ISA14 was set to a positive number). Every interchange header will be analyzed and if a problem is found a TA1 will be raised immediately. The contents of an interchange will always be processed regardless of its status. Upon reaching the interchange trailer (or improper end of file or a new interchange header) it will be analyzed and TA1 will be raised if not previously raised. Trailer faults do not trigger interchange rejection and are only informational. Duplicate detection can be incorporated by providing an external delegate.

EDI Tools for .NET AckMan analyses each ISA header as it reads the EDI document along. If the ISA can be rejected, a TA1 is generated immediately without waiting for the IEA trailer.

X12 TA1 Examples

The following table indicates which error codes specified by the X12 specification are supported in EDI Tools for .NET AckMan and which are unsupported. The values for TA104 are as follows:

A = Accept

E = Interchange accepted with errors

R = Interchange rejected/suspended

Definition TA104  TA105  Supported?
Success A 0 Yes
The Interchange Control Numbers in the header ISA 13 and trailer IEA02 do not match E 1 Yes
Standard in ISA11 (Control Standards) is not supported E 2 No
The version of the controls is not supported E 3 Yes
Segment Terminator is Invalid R 4 No
Invalid Interchange ID Qualifier for Sender R 5 Yes
Invalid Interchange Sender ID E 6 Yes
Invalid Interchange ID Qualifier for Receiver R 7 Yes
Invalid Interchange Receiver ID E 8 Yes
Unknown Interchange Receiver ID E 9 No
Invalid Authorization Information Qualifier value R 10 Yes
Invalid Authorization Information value R 11 Yes
Invalid Security Information Qualifier value R 12 Yes
Invalid Security Information value R 13 Yes
Invalid Interchange Date value R 14 Yes
Invalid Interchange Time value R 15 Yes
Invalid Interchange Standards Identifier value R 16 Yes
Invalid Interchange Version ID value R 17 No (uses 003 instead)
Invalid Interchange Control Number value R 18 Yes
Invalid Acknowledgment Requested value E 19 Yes
Invalid Test Indicator value E 20 Yes
Invalid Number of Included Groups value E 21 Yes
Invalid Control Structure R 22 Yes
Improper (Premature) End-of-File (Transmission) R 23 Yes
Invalid Interchange Content (e.g., Invalid GS segment) R 24 Yes
Duplicate Interchange Control Number R 25 Yes
Invalid Data Element Separator R 26 No
Invalid Component Element Separator R 27 Yes
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