SAN FRANCISCO (MarketWatch) -- Salesforce.com Inc. CRM, -0.71% Chief Executive Marc Benioff tweeted Thursday the cloud computing company is canceling "all programs that require our customers/employees to travel Indiana" in response to a bill signed into law earlier Thursday by Indiana Gov. Mike Pence on religious objections. There has been concern the law would allow business owners to refuse services to gays. Benioff also tweeted that he was calling on other chief executives to follow his lead.