PayPal has announced the immediate availability of its peer-to-peer payment service on Facebook Messenger, making it easy to exchange money between friends and family. PayPal also introduced its first-ever customer service bot, which gives Messenger customers payment and account support right in the app. An agreement struck last year with Facebook allowed 2.5 million PayPal customers in the U.S. to connect their accounts with Messenger and use PayPal to shop on Messenger, as well as to communicate with other PayPal users, noted COO Bill Ready.