Key TakeawaysSalesforces shares moved lower in premarket trading Thursday after the cloud software maker issued current-quarter and full-year guidance that fell short of Wall Street's expectations.Salesforce CFO Amy Weaver said that the company's guidance accounts for foreign exchange pressures and continued weakness in professional services.The company announced a dividend of 40 cents per share and increased its share repurchase program by $10 billion.Salesforce shares may find resistance near the stock's ...