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  | Quintiq file version 2.0 
 |  #parent: #root 
 |  Function CalcIsUsed 
 |  { 
 |    TextBody: 
 |    [* 
 |      // DWE2 Apr-6-2016 (created) 
 |       
 |      value := ifexpr( this.IsInput(), 
 |                       exists( this, Unit.Operation.OperationInput.ProductInStockingPoint_MP.StockingPoint_MP, sp, 
 |                               sp = this.StockingPoint_MP() ), 
 |                       exists( this, Unit.Operation.OperationOutput.ProductInStockingPoint_MP.StockingPoint_MP, sp, 
 |                               sp = this.StockingPoint_MP() ) ); 
 |       
 |      this.IsUsed( value ); 
 |    *] 
 |  } 
 |  
  |