
Scheduling IDoc Transfer to Communication Layer
When an IDoc is transferred to the communication layer, a transactional RFC (tRFC) forwards it to an external system. The ALE layer transfers the IDoc.
The ALE layer processes the outbound IDoc and controls its dispatch. Depending on the partner profile settings in Customizing for ALE, IDocs can be transferred in the following ways:
You can process IDocs that are ready for transfer manually in ALE Administration (IDocs ® Monitoring ® Process IDocs manually).

You should use the outbound processing mode Collect IDocs, especially if you are distributing master data. System performance is better.
You can also
Process IDocs in Packets in the "collect" processing mode.To go to the ALE administration functions, from the SAP menu choose
Modelling and Implementing Business Processes
Partner Profiles and Time of Processing
Maintain Partner Profiles Manually or
Generate Partner Profiles.
Under outbound parameters choose the output mode Collect IDocs and transfer.