Scheduling IDoc Posting
There are two ways of posting IDocs in ALE inbound processing:
Upon receipt inbound IDocs are immediately released for posting. ALE inbound processing splits the IDoc packets into individual IDocs.
Inbound IDocs and IDoc packets are first saved in the database. IDoc packets are split into single IDocs beforehand.
The program RBDAPP01 later releases the saved IDocs for processing. Single IDocs can be put into packets and then processed.
To do this carry out the steps below in ALE Customizing:
Modelling and Implementing Business Processes
Partner Profiles and Time of Processing
Maintain Partner Profiles Manually
Then the required setting is: In the detail screen Inbound Parameters select the option Trigger by background program.
Modeling and Implementing Business Processes
Partner Profiles and Time of Processing
Scheduling IDoc Processing in Receiving System
You can also process the IDocs manually by passing them to the posting function module. In ALE Administration choose Monitoring ® Process IDocs manually, select the IDocs and then select Process.

You should choose background processing, especially if large data volumes are to be distributed. System performance is better.