On Tuesday, he said that David Marcus, a Facebook executive, will leave the social media company at the end of the year to work on something new.
Marcus had been overseeing Facebook's efforts to develop a digital currency known as Diem and a wallet app called Novi, and his departure adds to challenges for the fintech unit. He said that his colleague Stephane Kasriel would take over.
Marcus said in a Facebook post that there was still so much to do on the heels of launching Novi, and I remain as passionate as ever about the need for change in our payments and financial systems.
Chief Executive Mark Zuckerberg said, "We wouldn't have taken such a big swing at Diem without your leadership and I'm grateful you've made Meta a place where we make those big bets." Marcus joined Facebook in 2014 from PayPal and ran the social media company's Messenger chat service before he moved to work on the financial tools.
Facebook, which was rebranded last month as Meta Platforms Inc, scaled back global plans for Diem after regulators worried that the service could gain too much control over the money system, enable crime and harm users' privacy.
The goal of the project, previously known as Libra, is to create a stable coin that is pegged to the dollar to avoid the volatility that makes other cryptocurrencies difficult to use.
Facebook has begun testing Novi in Guatemala and the United States, allowing transfers of the stable coin Pax Dollar. Some U.S. lawmakers last month said Facebook can't be trusted to manage cryptocurrencies and urged the company to discontinue the test immediately. Facebook is looking forward to engaging with the lawmakers.