How to  change the Portal Exception  from the page

Hi Experts,
    I want to remove  the exception symbol in Portal.If no roles were assigned to a user you will get a page  displaying that " No roles are assigned to the user please contact System Admin ".I have customizied this page ,changed the string (com.sap.
portal.navigation.portallauncher.par.).But now I want to remove the exception symbol (Red) from the page.Is it possible to remove  the exception symbol  only for the particular page?Can  any one please guide me.
Thanks&Regards
Alexi

To redirect HTTP to HTTPS
http://help.sap.com/saphelp_nw04/helpdata/en/b8/437d46d4451e4c9ab756e272a1581d/frameset.htm
Please check this link
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/197e6aec-0701-0010-4cbe-ad5ff6703c16
http://help.sap.com/saphelp_nw04/helpdata/en/e0/48e13a1522a441e10000000a11405a/frameset.htm
https://www.sdn.sap.com/irj/sdn/go/portal/prtroot/docs/library/uuid/964f67ec-0701-0010-bd88-f995abf4e1fc
Cheers!!
SJ

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    The following diagram is an example of how this might happen:
    1. The dispatcher receives the request to execute a dialog step from user 1 and directs it to work process 1, which happens to be free. The work process addresses the context of the application program (in shared memory) and executes the dialog step. It then becomes free again.
    2. The dispatcher receives the request to execute a dialog step from user 2 and directs it to work process 1, which is now free again. The work process executes the dialog step as in step 1.
    3. While work process 1 is still working, the dispatcher receives a further request from user 1 and directs it to work process 2, which is free.
    4. After work processes 1 and 2 have finished processing their dialog steps, the dispatcher receives another request from user 1 and directs it to work process 1, which is free again.
    5. While work process 1 is still working, the dispatcher receives a further request from user 2 and directs it to work process 2, which is free.
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    • The individual dialog steps of a program can be executed on different work processes, and the program context must be addressed for each new work process.
    • A work process can execute dialog steps of different programs from different users.
    The example does not show that the dispatcher tries to distribute the requests to the work processes such that the same work process is used as often as possible for the successive dialog steps in an application. This is useful, since it saves the program context having to be addressed each time a dialog step is executed.
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    The separation of application and presentation layer made it necessary to split up application programs into dialog steps. This, and the fact that dialog steps are dispatched to individual work processes, has had important consequences for the programming model.
    As mentioned above, a work process can only make database changes within a single database logical unit of work (LUW). A database LUW is an inseparable sequence of database operations. The contents of the database must be consistent at its beginning and end. The beginning and end of a database LUW are defined by a commit command to the database system (database commit). During a database LUW, that is, between two database commits, the database system itself ensures consistency within the database. In other words, it takes over tasks such as locking database entries while they are being edited, or restoring the old data (rollback) if a step terminates in an error.
    A typical SAP application program extends over several screens and the corresponding dialog steps. The user requests database changes on the individual screens that should lead to the database being consistent once the screens have all been processed. However, the individual dialog steps run on different work processes, and a single work process can process dialog steps from other applications. It is clear that two or more independent applications whose dialog steps happen to be processed on the same work process cannot be allowed to work with the same database LUW.
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