Salesforce announced the development of its Customer Success Platform. In September 2016, Salesforce announced the launch of Einstein, an artificial intelligence platform that supports several of Salesforce's cloud services. In 2019, Salesforce joined the Dow Jones Industrial Average, replacing energy giant and Standard Oil-descendant ExxonMobil. Salesforce's ascension to the Dow Jones was concurrent with that of Amgen and Honeywell. Because the Dow Jones factors its components by market price, Salesforce was the largest technology component of the index at its accession. Across 2020 and 2021, Salesforce saw some notable leadership changes; in February 2020, co-chief executive officer Keith Block stepped down from his position in the company. Marc Benioff remained as chairman and chief executive officer. In February 2021, Amy Weaver, previously the chief legal officer, became CFO. Former CFO Mark Hawkins announced that he would be retiring in October. In November 2021, Bret Taylor was named vice chair and co-CEO of the company. In December 2020, it was announced that Salesforce would acquire Slack for $27.7 billion, its largest acquisition to date. The acquisition closed in July 2021. Journalists covering the acquisition emphasized the price Salesforce paid for Slack, which was a 54% premium compared to Slack's market value, as too high of a premium for the company, with views varying from the premium being too concerning for investors to Salesforce playing the long game. In August 2022, Salesforce reported second-quarter earnings of $7.72 billion. Upon the German software firm SAP reporting its earnings for the same quarter totaling €7.52 Billion, Acceleration Economy reported that Salesforce had surpassed SAP to become the world's largest enterprise software vendor. This mirrored Benioff's remarks in Salesforce's earnings call, where he stated he looked at "this quarter very much as kind of a milestone". Salesforce announced a partnership with Meta Platforms in September 2022. The deal called that Meta's consumer application WhatsApp would integrate Salesforce's Customer 360 platform to allow consumers to communicate with companies directly. In November 2022, Salesforce announced it would terminate employees in its sales organization. Protocol reported that the company would likely eliminate some 2500 jobs. In November 2022, Salesforce announced its co-CEO and vice chair, Bret Taylor, would be stepping down from his roles at the end of January 2023, with Benioff continuing to run the company and serve as board chair. Within the week, former Tableau CEO Mark Nelson and former Slack CEO Stewart Butterfield also announced