1. DMax( "ProductID","Product")+1 in the default value of ProductID. 2. me!PartID =nz(DMax( "PartID","qryPartNo"))+1. 3. DFirst( "SumOfPrice","qrySumPrice") ÷ºÎÆÄÀÏÀ» ÂüÁ¶Çϼ¼¿ä Copyright By AccessVision