I have a problem with Operational Dashboard. I'm working with ArcGIS Enterprise 10.7 and a federated Portal.
I've published an hosted layer of municipalities; every municipality (Comune in italian) belongs to a Region and has a string field ("Mese attivazione EW") containing the month in which a specific service will start (see the image below).
From this dataset I would like to build a bar chart representing the number of municipalities grouped by region. Then I would like to split every group by the activation month.
As you can see in the image above I can't put the subclasses (months) in the right order. The right order should be 08-Agosto, 09-Settembre, 10-Ottobre...
I tried to put the month in a date field but then I can't use it to split the region groups.
Is there a way to choose the order of the split category or a work-around to accomplish that?