While there's no guarantee the talks will lead to a deal, it would potentially be Salesforce's largest acquisition ever, according to the Journal. Shares of Slack rose nearly 30% on Wednesday following the media reports.
Slack has beenthis year amid in uptick in remote work during the ongoing coronavirus pandemic. In October, the company including push-to-talk audio calls, Instagram-like stories and letting people from any company send you direct messages.
Salesforce and Slack didn't immediately respond to requests for comment.