Hi all,

I have created a generic inquiry to show total overdue by customer.  I want to show the trend of change customer like this. I know how to draw when fin-period is one column like this. Because I want to calculate the total overdue of customer base on each invoice due date, etc. So I have no idea how to combine them to one column period. I have also attached a GI I created for this. 

Pls advice me if you have any idea

 Thanks in advance