Using a 11.1.2.2 webgate with an OAM 11.1.2.3 agent may result in the error: “The underlying wallet operation failed.” raw_code^223.

This is caused by the 11.1.2.3 file cwallet.sso, which is not compatible with 11.1.2.2. It needs to be converted at the 11.1.2.3 OAM server with the command:

/oracle_common/bin/orapki wallet convert -wallet ./cwallet.sso -auto_login_only

Copy the converted cwallet.sso to the webgate and restart.