I have a WSDL from the E-Business Suite 12.1.3 (EBS-ISG) WSDL for the PER_ABSENCE_RECORD.
My Client Class is C#. I am able to create the service object and call the GET_ABSENCE_DETAILS.
I am getting this Error : Missing <wsse:Security> in SOAP Header
That error is due to SOAP Header missing the security details which are username and password.
Since you told the EBS12.1.3 is your server for wsdl.
You need to register the policy oracle/wss_username_token_client_policy.
I know in java that procedure, but in c# i don't know.
Through soa it is quite easy.
you can do this in design time using jdeveloper. Right click on exposed service and add policy
At run time you can log in to em console Go to your processgo to policy and attach the policy.