Christian Oehler is a Business Support Principal within SAP's Maintenance Portfolio Solution Management organization. His main topic is SAP Enterprise Support for the direct and indirect channel. He previously worked more than 10 years in SAP's headquarter in Walldorf/Germany. Most recently he was in charge of topics like Upgrade, Enhancement Packages and Application Lifecycle Management within the Business Suite Solution Management organization. Before that the IT professional worked 5 years as a Senior Consultant in the field, leading the Upgrade Focus Group. Christian joined SAP in 1999, since 2010 he is based in Hong Kong.