The basics for creating SAP-integrated web services with the WebService Designer are described in detail in our OnlineHelp under WebService Designer.
However when creating web services for ECS Core there are some specifics you have to take into account which we discuss closer in the following chapters.
To create a new web service for ECS Core click the New button in the SharePoint Package group. Select ERPConnect Services Core as target platform.
There is also a default web service and a OData specific web service selectable here. Unlike as for ERPConnect Services the default web service in ECSCore is in REST format. SOAP web services are not supported here.