Hello Alex,

I was able to find the following KB that should help achieve this: https://kb.tableau.com/articles/howto/identifying-the-first-product-each-customer-purchased

Hope this helps!

Cheers,

Byrne, Patrick

Hi Alex,

Please find the twbx file where i have managed to complete your request.

To obtain the first sale of the product, I have written the formula below

{FIXED  [Product Name]: MIN([Order Date])}

Then applied sum(sales)>0 in the filters self.

If it's right pls mark this response as helpful and answered.