| ERROR CODE | DESCRIPTION |
| 0000 | INTERCHANGE_OK;-every validation passedthrough successfully |
| 0016 | AWAITING_ DELIVERY_TO_REMOTE_SERVICE;-interchange has a status of 0000 (no errors) and it is waiting to be delivered to a trading partner on another VAN |
| 303 | INVALID_PASSWORD;-position security information in element ISA04 is not empty and the content is not correct |
| 304 | UNKNOWN_RECIPIENT;-the recipient given in element ISA08 is unknown |
| 306 | INCOMPLETE_FILE;-missing any start or end segment of any envelope loop ISA must be followed by IEA, GS must be followed by GE and ST must be followed by SE |
| 307 | INTERCHANGE_CONTROL_NUMBER_MISMATCH;-the interchange controlnumber from ISA13 and from the corresponding IEA02 are not identical |
| 308 | FUNCTIONAL_GROUP_CONTROL_NUMBER_MISMATCH;-the group control number from GS06 and the from the corresponding GE02 are not identical |
| 309 | NVALID_NUMBER_OF_FUNCTIONAL_GROUPS;-the number of included functional groups from element IEA01 does not match the number of GS/GE pairs included within the interchange |
| 310 | TRANSACTION_CONTROL_NUMBER_MISMATCH;-the transaction set control number from element ST02 does not match that one from corresponding SE02 element |
| 311 | MESSAGE_TRAILER_COUNT_MISMATCH;-the number of included transaction sets from element GE01 does not match the number of ST/SE pairs included within this functional group |
| 312 | INVALID_NUMBER_OF_TRANSACTION_SEGMENTS;-the number of included segments in one ST/SE loop does not match the number in SE01 |
| 315 | UNEXPECTED_INTERCHANGE_HEADER_FAILURE;-the ISA segment does not have at least 106 characters. |
| 317 | UNKNOWN_SENDER;-the sender given in element ISA06 is unknown |
| 325 | SENDER_ID_DOES_NOT_MATCH_MAILBOX_ID;-the sender given in element ISA06 does not match the mailbox name |
| 393 | DUPLICATE_EAP_KEYWORD;-transaction set control number from SE02 is not unique within the functional group |
| 421 | SERVICE_NOT_AVAILABLE;-service not available, closing connection, Internal server error: retry session |
| dupe | DUPLICATE_INTERCHANGE;-the interchange is totally identical to an already successfully sent Interchange |
| 8999 | MORE_THAN_ONE_GS_GE_LOOP_FOUND;-furthermore, we do not support multiple GS/GE loops |
| 9994 | NO_INTERCHANGE_ENVELOPE;-the uploaded document contains no interchange envelope |
| 9996 | NO_GS_GE_LOOP_FOUND;-the interchange loop contains no functional group (GS/GE loop) |
| 9997 | INVALID_NUMBER_OF_ELEMENTS_IN_ISA_SEGMENT;-the ISA segment has less than 13 elements. elements 14, 15 and 16 are not relevant. |
| 9998 | NO_ISA_SEGMENT; -no ISA segment found |
| 9999 | INVALID_DOCUMENT; -any other mistake |