The quickest way to change the dates you are viewing in Phocas is to choose from a list of defined periods, set by administrators. Defined periods will contain both a current period and previous period and are usually dynamic, meaning they adjust according to today's date. This is achieved by usingoffset dates.
Select Periods > Last month and Apply. The data in the grid updates to display information for sales reps last month. The Periods button changes to 'Last month'.
Seeing what dates are in a period
To check what dates a particular defined period refers to, choose a period (e.g., Period > Last month) and when the grid updates select Period > Custom. The dialog that opens will show the dates that were set for this defined period.