Which report shows which customer spent the most money in our restaurant in a month?

[Fredmayne]

The title of this thread has been edited from the original: Customer sales

How would I run a report to see which customer spend the most money in our restaurant in a single month?

[VanKalkerFarms]

the customers page of Square isn't set up to be sorted by time but will show you your big spenders.  https://squareup.com/dashboard/customers/directory/all?sortOrder=DESCENDING&sortType=SPEND_TOTAL