Special rebate condition

[Former Member]

Hi all I wanna know one thing about rebate conditions. I have a requirement that I wanna give rebates to my customer according to whole sales of it but I will give only one product for rebate. I mean If I sell A and B only and if my customer buys 1000 (sum of A and B) currency of A and B ,I will give customer 100 currency of A for rebate.

Could you help me?

Thanks...

[Former Member]

well I can ask another question that how can I take the sales data of customer I mean what is the total sales to that customer in a period?

Regards