To create a pivot table that shows the last 12 months of data (i.e.

Filter is a helper column with a formula flagging the last 12 months.

The formula uses the AND, TODAY, and EOMONTH functionsas explained here.

Pivot table last 7 days field configuration

Pivot table last 7 days field configuration

Pivot table last 7 days field configuration

Pivot table last 7 days field configuration

Pivot table last 7 days field configuration