Error occured while service was processing while invoking Emp WS

Question

Getting error <faultstring>Error occured while service was processing.</faultstring> while invoking the Employee pl/sql webservice. Below is the payload I am sending to the webservice that is deployed in R12.1 instance using iRep. Please help.
<soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:hr="http://xmlns.oracle.com/apps/per/soaprovider/plsql/hr_employee_api/" xmlns:cre="http://xmlns.oracle.com/apps/per/soaprovider/plsql/hr_employee_api/create_employee/">
<soapenv:Header>
<hr:SOAHeader>
<hr:Responsibility>SYSTEM_ADMINISTRATOR</hr:Responsibility>
<hr:RespApplication>SYSADMIN</hr:RespApplication>
<hr:SecurityGroup>Standard</hr:SecurityGroup>
<hr:NLSLanguage>AMERICAN</hr:NLSLanguage>
<hr:Org_Id>204</hr:Org_Id>
</hr:SOAHeader>
<wsse:Security soapenv:mustUnderstand="1" xmlns:wsse="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd" xmlns="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd">
<wsse:UsernameToken wsu:Id="UsernameToken-Vm6jzMWeZx220sdBFHZ93A22" xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd">
<wsse:Username>SYSADMIN</wsse:Username>
<wsse:Password Type="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-username-token-profile-1.0#PasswordText">x</wsse:Password>
</wsse:UsernameToken>
</wsse:Security>
</soapenv:Header>
<soapenv:Body>
<cre:InputParameters>
<cre:P_VALIDATE>false</cre:P_VALIDATE>
<cre:P_HIRE_DATE>17-JUN-07</cre:P_HIRE_DATE>
<cre:P_BUSINESS_GROUP_ID>202</cre:P_BUSINESS_GROUP_ID>
<cre:P_LAST_NAME>Employee</cre:P_LAST_NAME>
<cre:P_SEX>M</cre:P_SEX>
<cre:P_PERSON_TYPE_ID>13</cre:P_PERSON_TYPE_ID>
<cre:P_PER_COMMENTS>Test</cre:P_PER_COMMENTS>
<cre:P_DATE_EMPLOYEE_DATA_VERIFIED></cre:P_DATE_EMPLOYEE_DATA_VERIFIED>
<cre:P_DATE_OF_BIRTH>01-JAN-1981</cre:P_DATE_OF_BIRTH>
<cre:P_EMAIL_ADDRESS>[email protected]</cre:P_EMAIL_ADDRESS>
<cre:P_EMPLOYEE_NUMBER>123421</cre:P_EMPLOYEE_NUMBER>
<cre:P_EXPENSE_CHECK_SEND_TO_ADDRES></cre:P_EXPENSE_CHECK_SEND_TO_ADDRES>
<cre:P_FIRST_NAME>ORACLE FORUM 3</cre:P_FIRST_NAME>
<cre:P_KNOWN_AS>Raj</cre:P_KNOWN_AS>
</cre:InputParameters>
</soapenv:Body>
</soapenv:Envelope>

Answer 1

According to the XSD of the service, p_validate is an integer:
<element name="P_VALIDATE" type="int" db:index="1" db:type="INTEGER" minOccurs="0" nillable="true" />