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Extension function error: Method not found 'setFlowInstanceTitle – Oracle SOA 12C(12.1.3)

We were getting the below exception while trying to set the title for composite instance in 12.1.3

<env:Envelope xmlns:env="http://schemas.xmlsoap.org/soap/envelope/<https://urldefense.proofpoint.com/v2/url?u=http-3A__schemas.xmlsoap.org_soap_envelope_&d=AwMFAw&c=4ZIZThykDLcoWk-GVjSLm9hvvvzvGv0FLoWSRuCSs5Q&r=8qQMQBAbDh32F7DyV0m3CH9kXdKLrWigXrO0p0cWQEir0H7fTd2J8_NC1cElkvWv&m=dRon_z2evK4VjWGP0oY9FibkrtcDAvecx7CgL26qjC0&s=7zNuyckO1P0yz595V1RJcVFjt7td9IRnkJf6OEWgRdE&e=>">
  <env:Header>
     <tracking:faultId xmlns:tracking="http://oracle.soa.tracking.core.TrackingProperty<https://urldefense.proofpoint.com/v2/url?u=http-3A__oracle.soa.tracking.core.trackingproperty_&d=AwMFAw&c=4ZIZThykDLcoWk-GVjSLm9hvvvzvGv0FLoWSRuCSs5Q&r=8qQMQBAbDh32F7DyV0m3CH9kXdKLrWigXrO0p0cWQEir0H7fTd2J8_NC1cElkvWv&m=dRon_z2evK4VjWGP0oY9FibkrtcDAvecx7CgL26qjC0&s=DwqbKOWHhDFBuDf9yc8Ur29O_D7KfSBO_exS-pWTjNE&e=>">10002</tracking:faultId>
  </env:Header>
  <env:Body>
     <env:Fault>
        <faultcode>env:Server</faultcode>
        <faultstring>An error occurs while processing the XPath expression; the expression is oraext:setFlowInstanceTitle("Title").</faultstring>
        <faultactor/>
        <detail>
           <exception>XPath expression failed to execute.
An error occurs while processing the XPath expression; the expression is oraext:setFlowInstanceTitle("Title").
The XPath expression failed to execute; the reason was: Extension function error: Method not found 'setFlowInstanceTitle'.
Check the detailed root cause described in the exception message text and verify that the XPath query is correct.</exception>
        </detail>
     </env:Fault>
  </env:Body>
</env:Envelope>

To resolve the issue apply the patch with no 18310693.