writeDown
		
	
	The method writeDown allows a user to decrease the proncipal accrued amount for a loan. See U0125 IBL Principal Adjustment -> Principal Write-Down for more details.
	
	
		
	  public java.lang.String writeDown(java.lang.String input)
	
Throws:
     java.rmi.RemoteException - Exceptions that may occur during the execution of a remote method call.
Where:
      input - - An XML document to write down principal accrued amount for a loan.