Inbound Interfaces For Remote Function Call (RFC) Communication 
The inbound interfaces in Demand Data Foundation (DDF) are used to receive data from other systems via RFC.
Prerequisites
You have ensured that the logical system is defined in Customizing under
Cross-Application Components 
Demand Data Foundation Basic Settings Define Logical Systems 
.
If you use a master data system, you have defined the sending system in Customizing under
Cross-Application Components Demand Data Foundation Basic Settings Integration Sending System and Master Data System Coupling .
If you use SAP Business Warehouse (SAP BW), you have defined the mapping in Customizing under
Cross-Application Components Demand Data Foundation Basic Settings Integration BI and Master Data System Coupling .
You have defined the load balancing in the Configure Load Balancing function.
You have defined the number ranges in Customizing for Number Range Object Maintenance under
Cross-Application Components General Application Functions Records and Case Management Basic Settings Unique Indicator Maintain Number Ranges .
Features
DDF provides the following inbound interfaces for RFC communication:
Master Data
Time Series
Offers
Activities
DDF receives the data via RFC. The data is first saved in the DDF staging tables. From there it is transferred to the DDF production tables. For more information about this data transfer, see Inbound Processing.