Month sort order not done in natural way

[Newbie777]

Hello,

I'd like to sort the month by descending order in a pivot table.  I set the sort option in the properties pane in the manner below, but it is not sorted in the descending order as intended.  I'd appreciate it if anyone can tell me where I am going wrong with this.  

Thank you for your help.

[sergio0592]

Hi,

In expression try with : 

Only({1} MONTH)

[Newbie777]

Thanks I tried, but I get the error message like below.  

But anyway, I solved that issue by an alternative way.  

[sergio0592]

So, your field is Month not MONTH as in my exemple.