I would like to be able to track the sales of those customers who have purchased one specific product "X" with one extra condition:. only all those customer-specific sales that exist during the same day as the purchase of the product "X" should be taken into account.
The expression below illustrates what I would like to track. I know that Customer&Date combination does not work like it is used below, but if did, the expression below would give me what I am looking for. In other words, I am looking the overall sales of Customer&Date combinations that have purchased this product X.
Could someone be able to help me? Thank you already in advance!