Salesforce to acquire Slack for $27.7 billion

Salesforce is snapping up Slack for $27.7 billion in cash and stock, in a move that will mark its largest acquisition to date, the companies said Tuesday. Under the deal, Slack will be combined with Salesforce Customer 360 and serve as the new interface for the service. Slack's founder and CEO Stewart Butterfield will continue in that role when Slack becomes an operating unit of Salesforce. The deal is expected to close by the end of July, pending regulatory and shareholder approval. "Stewart…