[KDP ROYALTIES] Does KDP Send Out Emails of Upcoming Payments?

Provided email from KDP does not go to your spam folder, each month you have sales, they will send you a email that they will be transfering you your payment later in the month (28th to 30th, if direct deposit, longer for wire and cheques mailed, before you get it).

They generally send out these emails around the 20th or 21st of the month. They come from Amazon Accounts Payable. Subject will be KDP Royalty Payment Notification, followed by your name and other information.

For every Amazon country site you had sales in, you will get an email. 

The month you are getting paid on, are for sales you had 2 months previous. So if you get the email on May 21, you are being notified and they are paying you for March sales.

Please see this article to see how you see the amounts. [KDP ROYALTIES] How Do I See How Much I Made Selling Books