developer console says: "Last Merchant Sales Report n/a"

for some time now, my developer console overview shows a small box named开发者_如何学Go "Merchant sales report" in which is written:

Last Merchant Sales Report n/a

What does that mean?

It's a report for the sales over the last month.

As you haven't had any sales (plus haven't got any apps that could have sales) it shows N/A (Not applicable).

When you do have sales, clicking it downloads a CSV file containing details of what has happened.

The CSV has these column titles:

Order Number,Order Charged Date,Order Charged Timestamp,Financial Status,Payout Date,Device Model,Product Title,Product ID,Currency of Sale,Item Price,Taxes Collected,Charged Amount,Merchant Currency,Estimated FX Rate,Merchant Receives,City of Buyer,State of Buyer,Postal Code of Buyer,Country of Buyer

EDIT

Here google have just made a Blog Post: Merchant Sales Report