Identity Broker Service does not start - event viewer error indicates that connection string attribute is missing even though attribute exists in extensible configuration

Task:
Installation of Identity Broker for SAP HCM

Task List:
1. Install Identity Broker service
2. Configure Identity Broker service
3. Install and configure connector and adapter components.

After the successfull installation of Identity Broker service the Identity Broker database was created and the Identity Broker script ran sucessfully. The next step was to configure the service with the datbase connection details as given below. Upon starting the Identity Broker service the following error was captured as given below.

The error indicates that the connection string is missing in the configuration file however the string is present in the DataEngine.extensibility.config.xml configuration.

DataEngine Configuration:
<DataEngine>
<dataRepository>
<dataConnection name="sql" repository="FIM_DEV_Unify_IdentityBroker" connectionString="Data Source=amausgcdbad05;Initial Catalog=FIM_DEV_Unify_IdentityBroker;Integrated Security=True" />
</dataRepository>
</DataEngine>

DataEngine Configuration Values:
Database type = SQL
Database server = amausgcdbad05
Database Name = FIM_DEV_Unify_IdentityBroker

Event Viewer:

• <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
• <System>
  <Provider Name="UNIFY Identity Broker v3.0 service" />
  <EventID Qualifiers="0">0</EventID>
  <Level>2</Level>
  <Task>0</Task>
  <Keywords>0x80000000000000</Keywords>
  <TimeCreated SystemTime="2011-01-11T23:07:57.000000000Z" />
  <EventRecordID>1264</EventRecordID>
  <Channel>Application</Channel>
  <Computer>AMSGCQAP01.int.alliedmills.com.au</Computer>
  <Security />
  </System>
• <EventData>
  <Data>Service cannot be started. Unify.Framework.AdoNetDataControlConfigurationException: Missing connectionString attribute from <dataConnection name="sql" repository="FIM_DEV_Unify_IdentityBroker" /> at Unify.Framework.AdoNetDataControlFactoryBase.SetConfiguration(XElement configurationElement) at Unify.Framework.SqlServerDataControlFactory..ctor(XElement element) at Unify.Framework.SqlServer.SqlServerDataControlGenerator.CreateComponent(XElement element) at Unify.Framework.PlugInGeneratorBase`4.CreateComponent(TFactoryInfo factoryInformation) at Unify.Framework.StoredValuesEngine..ctor(IAdoNetDataControlGenerator dataControlGenerator, DirectoryInfo executingAssemblyDirectory) at Unify.Framework.StoredValuesEnginePlugInFactory.CreateComponent(IUnifyEnginePlugInFactoryInformation factoryInformation) at Unify.Framework.DependencyPlugInGenerator`4..ctor(ICollection`1 plugInGenerator, IPlugInFactory`2 factoryInformationFactory) at Unify.Framework.UnifyEngine..ctor(IEnumerable`1 additionalPlugInFactories, Di...</Data>
  </EventData>
  </Event>