Welcome to the PayPal community! An automatic payment authorizes a merchant to charge you whenever you make a purchase on their website without signing into your PayPal account. This is something that's set up on the first checkout with the merchant. Unfortunately, PayPal would not be able to notify you prior to the transaction, as this is something deducted by merchants as per the terms. Please contact the merchant to learn more about the terms and ask them to notify you prior to any deduction for smooth functioning.
I hope this helps.