will pp cancel my transaction if I try to transfer from bank to pp w lack of funds?

Description

Hi. So… I went to transfer funds to Pay Pal to pay for some of my items. I made a typo and instead of 50.00 I put 500.00 to transfer from my bank account to my Pay Pal. User error I know… but what happens next. If I had 300.00 in my bank account and transferred 500.00… Will they just cancel it or will they charge an overdraft fee? And what will my bank do if I have -200.00 in my bank account if indeed Pay Pal does NOT cancel the transaction? Is it like an NSF fee my bank will charge, and should I explain that to the bank? Thanks in advanced KR