Hi Reen

I would create two parameter fields, one for the StartDate and one for the EndDate, each asking for a discrete value, and then use a formula like this:

IF {SR65A Transactions.Date} >= {?StartDate} and {SR65A Transactions.Date} <= {?EndDate}
THEN {SR65A Transactions.Quantity sold}
ELSE 0

Not only does this offer maximum flexibility (although it is a bit user unfriendly) but it also allows you to put the two dates on the report header, such as From {StartDate} To {EndDate}

Notice I took out the sum(..) text in your formula. You don't want that if you put the field in the Detail section, and then simply insert a subtotal on that field.

Steve