The common transport errors that are encountered include:
Return code 4: This error code is imported with warnings, generation of programs, columns or rows missing.
Return code 8: This error code is imported with syntax error, program generation error, dictionary activation error and because of many other errors.
Return code 12: This error code indicates import canceled because of object missing, object not active and many objects related errors.
Return code 18: this error code indicates import canceled due to system down while importing, user expired during import and insufficient authorization.
