Salesforce’s deal to buy MuleSoft for $6.5 billion came together rapidly, a regulatory document made public on Monday makes clear … Salesforce and MuleSoft signed the deal in early March and made it public on March 20 — less than two months after they first started talking about a strategic alliance … Since Salesforce and MuleSoft announced the deal, Wall Street analysts and investors have questioned its size and the speed with which it came together.