Thanks a lot dhookom for your solution, That cleared the confusion on another aggregate which the total bill on that order.
But I was also interested in the Grand Total which is the SUM() of all order or subtotal.
I would highly appreciate a hint on how to go about pulling that Grand Total off...
I am trying to calculate the Grand Total for my Order Items on my main order form using the =SUM() function. It displays on the subform itself but errors out on the main form. I find it hard to figure out where I went wrong after many days and my Acces skills are beginner level. Solutions...
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