SAP will do small 'tuck-in' acquisitions, not mega deals, CEO Bill McDermott says

• Investors should not expect the German software company to engage in big deals in the near future, McDermott told CNBC.
• In January, SAP announced a deal to buy CallidusCloud for $2.4 billion. It was the first large acquisition for German firm since it bought Concur in 2014 for $7.3 billion.
• McDermott explained that margins would rise in 2018 because heavy investment, such as opening data centers, is behind the company.

Listen to Bill here...