The Date Type Toggle Allows you to filter the data that you would like to be displayed on the Reveel Dashboard in terms of viewing it either from the Invoice date or Ship date perspective.
The ship date is when an order is physically shipped, while the invoice date is when the invoice, the carrier's bill requesting payment for the shipment activity, is issued.
Having this functionality allows you to analyze your shipping data from the date perspective of either the billing date (Invoice Date) or the date the package shipped (Ship Date).