Custom matrix

[sima_ue031]

Hello, 

I need to create a matrix in power bi using Dax like on the photo that I uploaded. 
I have a one-fact table with InvoiceNo, ItemNo, CustomerNo

In rows, I would like to put the number of Invoices that have at least one selected item from the slicer. From 1 to 12, and if we have more than 12, I need to put in >12. 
In columns, I have the total number of invoices in 2023. In the same order from 1 to 12 and more than 12 (>12.)
In the intersection of rows and columns, I would put distinct numbers of CustomerNo.

Anybody can help me to write all the required measures?

[Idrissshatila]

Hello @sima_ue031 ,

check this to take an idea how you could customise it 

https://youtu.be/PI52ckgezzA?si=BLuX6A6YGkny4-p8

https://youtu.be/J4317R5BvsA?si=HbGshy4_X990-Ppk