MSIR.0685 (XPath error reason) near or before position (pos):

This message indicates that an error occurred while parsing an Xpath expression argument. XPath_error_reason indicates the cause of the error. pos indicates the input position (in bytes) of the Janus SOAP parsing routine when the error was detected. This position may be either quite near the error, or after some point at which the error could be detected.

This message is followed by a message (MSIR.0664) which echoes the input XPath expression, or a fragment of it which is at or near the location in the string at which the error was discovered.