Show Items that were purchased Yesterday but not the 30 days prior to that

[djbloiss]

I need to create a Qlikview report that will show all new items that customers purchased with new being defined as what they did not purchase in the 90 days prior.  Here is the formulas that I have tried:

=sum({$<[CustItemKey]=e({1<[Invoice Date Num]={'>=$(=vMax_SO_Closed_Date-30)<=$(=vMax_SO_Closed_Date-1)'} >} [CustItemKey]),

[Transaction Date Num]={"=$(=vMax_SO_Closed_Date)"} >} [Actual Quantity])

=sum({$<[CustItemKey]=p({1<[Invoice Date Num]-={'>=$(=vMax_SO_Closed_Date-30)<=$(=vMax_SO_Closed_Date-1)'} >} [CustItemKey]),

[Transaction Date Num]={"=$(=vMax_SO_Closed_Date)"} >} [Actual Quantity])

Within this CustItemKey refers to a customer item combination. vMax_SO_Closed_Date is today's date.

Right now these formulas are giving me all the sales that customers purchased for the items in the list even if it wasn't purchased yesterday.  What am I missing?

[vishsaggi]

Can you share some sample data or file to look into?

[pradosh_thakur]

=sum({$<[CustItemKey]-=p({1<[Invoice Date Num]={"<=$(=vMax_SO_Closed_Date) -30"} >} [CustItemKey]),

[Transaction Date Num]={"=$(=vMax_SO_Closed_Date)"} >} [Actual Quantity])