If you are using Cross References (using xref:lookupXRef1M) function in your integration processes (BPEL/ESB) and ever come across the following error
"XPath expression failed to execute.
Error while processing xpath expression, the expression is
Please verify the xpath query."
This exception can occur because of the following reasons:
-
The cross reference table with the given name is not found
-
The specified column names are not found
-
The specified reference value is empty
-
Multiple values are found
