hi Latha,

I'm not sure i can understand your scenario.

Please take a look at the general work-flow of how you should manage authentication and subscriptions in your Adapters. See Chapter 4 of "General Concepts.pdf". The Metadata Adapter will be notified of a new user logging on. It will be notified of any subscriptions made by that user too. On the other hand, the Data Adapter will be notified of any new subscription(that is, irrespective of the user provoking it) and has the role of injecting updates on the items related to such subscriptions.

So, for your requirements perhaps you need to work on the Metadata Adapter, more than on the Data Adapter. You can find the source code of a .NET Metadata Adapter under "\DOCS-SDKs\sdk_adapter_dotnet\examples\DotNetStockListDe mo\src_metadata_adapter".

Hope that helps.

-Alessandro