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In order for an error message to appear on screen, a java exception must be created and thrown. 

1. Create the Exception class. 
   1. All exception classes must extend com.crm.exception.CRMValidationException. 
   2. All exception methods should have a com.crm.exception.CRMValidationException object as an input parameter and use setMessage method of com.crm.exception.CRMException class.
      1. To create the exception method:
         1. Use com.crm.businessobject.CRMSession object as an input parameter and any other String input parameters needed.
         2. Put all String input parameters in a String ArrayList.
         3. Use setMessage method of com.crm.exception.CRMException class to construct the exception message.

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