Report Required -Number of Lines Fulfilled over a time period

Hi All,

Trying to get a KPI showing number of lines packed per time period.

For the life of me I can't get a Saved Search to output the number of lines Fufilled over a time period.

I have the transaction saved search set up like this;

Criteria:
Item : Type any of Inv Item, Kit/Package
Type = Item Fulfillment
Main Line = False
Date = between whenever and whenver

Results:
Line ID (Summary Type: Count)

I have tried a count on various fields but none gives me the right number.

Where am I going wrong?

Thanks!
Pete