Matrix Sort Date Newest To Oldest

Hi, HenryJS 

According to your description, first, you want to sort Week Ending by Week number but failed because of different years, I think you can create a calculated column to connect year with week number to distinguish with other years. Like this:

Year-Weeknum = YEAR([Date])&"-"&WEEKNUM([Date],2)

Then you want to make the Matrix sorted by the value of the column(end of the week), but according to my test and research, I guess that Power BI matrix still don’t have this feature, you can click here to vote for this idea: https://ideas.powerbi.com/ideas/idea/?ideaid=1513f45d-a47a-4326-adbe-8bb0023da6c8

Here are some other solutions about this problem, you can take a look and have a try:

https://www.biinsight.com/quick-tips-how-to-sort-matrix-by-column-in-descending-order/

https://community.powerbi.com/t5/Desktop/Sort-by-Column-in-Matrix-Visual-not-by-Row-or-by-Value/td-p/577540

https://docs.microsoft.com/en-us/power-bi/create-reports/desktop-sort-by-column#sort-using-the-sort-by-column-button

Best Regards,

Community Support Team _Robert Qin

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.