If this is a new install or a new upgrade and you are experiencing errors, run the verification script included in the XML Gateway patch to verify that all the necessary components of the XML Gateway solution are installed correctly. Refer to Automated Troubleshooting Script for details on how to execute the troubleshooting script, ecxver.sql.
If the troubleshooting script did not reveal any install or upgrade errors, or if the error occurs in the processing stage, perform the following manual troubleshooting procedures.
There are three types of error messages generated by Oracle XML Gateway:
Engine-level - error messages generated by the XML Gateway execution engine.
API-level - error messages generated by APIs.
HTTP Response Codes - error response codes returned in the HTTP Response by the OTA server