getting 500 Internal server error

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XML

SOAP

google-app

Hi,

I am getting below error while migrating from Adwords v201406 to v201506... Please help me...Thanks in Advance..

<soap:Body>
- <soap:Fault>
<faultcode>soap: Server</faultcode>
<faultstring>[AuthenticationError.CLIENT_CUSTOMER_ID_IS_REQUIRED @ ; trigger:'<null>']</faultstring>
- <detail>
- <ns2:ApiExceptionFault xmlns="https://adwords.google.com/api/adwords/cm/v201506" xmlns:ns2="https://adwords.google.com/api/adwords/mcm/v201506">
<message>[AuthenticationError.CLIENT_CUSTOMER_ID_IS_REQUIRED @ ; trigger:'<null>']</message>
<ApplicationException.Type>ApiException</ApplicationException.Type>
- <errors xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="AuthenticationError">
<fieldPath />
<trigger><null></trigger>
<errorString>AuthenticationError.CLIENT_CUSTOMER_ID_IS_REQUIRED</errorString>
<ApiError.Type>AuthenticationError</ApiError.Type>
<reason>CLIENT_CUSTOMER_ID_IS_REQUIRED</reason>
</errors>
</ns2:ApiExceptionFault>
</detail>
</soap:Fault>
</soap:Body>