Creating a Logical System and an RFC Destination 

Carry out the following in both the calling system and the system being called. In each case enter the target addresses of the other system.

Setting the RFC Destination for Connection Between SAP Systems

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       1.      In the Implementation Guide (IMG), choose Application Server à iDOC Interface/Application Link Enabling (ALE) à Communication à Create RFC Connection.

The system displays the screen Display and Maintain RFC Destinations.

       2.      Choose Create.

The system displays the RFC Destination screen.

       3.      Enter an informative name for the RFC destination (target system).

       4.      Choose connection type ‘3’ (for ABAP connection).

       5.      Enter a description of the RFC destination (documentation) and choose Enter.

This activates the input template of the Technical settings tab page.

       6.      Enter the required data on the Technical settings tab page.

If you want to use a particular target host, choose Load Distribution → No, and then choose Enter. Enter the target host and the system number.

If you want to use load distribution (to utilize more than one application server), select Load Distribution → Yes, and then choose Enter. Enter the target system ID and the message server of the target system, and choose Enter.

       7.      Enter the required data on the Registration/Security tab page (optional), and save the RFC destination using .

       8.      Choose Test Connection.

The RFC connection test screen is displayed.

Setting the Logical System in ALE Customizing

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       1.      In the IMG, choose Application Server à iDOC Interface/Application Link Enabling (ALE) à Set Up Logical Systems à Name Logical System.

The Display View “Logical Systems”: Overview screen is displayed.

       2.      Choose New Entries.

       3.      Enter a name and a description for the logical system.

       4.      Save your entries using .

Assigning a Logical System to an RFC Destination

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       1.      In the IMG, choose Application Server à iDOC Interface/Application Link Enabling (ALE) à Communication → Determine RFC Destinations for Method Calls.

The screen Assign RFC Destinations for Synchronous Method Calls is displayed.

       2.      Select the logical system that you have just created.

       3.      Choose Standard BAPI destination.

A dialog box appears.

       4.      Enter the RFC destination for BAPI calls, and choose .

       5.      Choose Standard Dialog Destination.

A dialog box appears.

       6.      Enter the RFC destination for dialog calls, and choose .

       7.      Save your entries using .

 

As of SAP Release 4.5B, a logical system can be assigned to an RFC destination according to business object type methods (choose the “Special method destination” pushbutton). This requires that the addressed business object type is available in both systems, which is not the case in SAP Records Management. In addition, the BOR runtime environment does not support the enhanced ALE Customizing. This means that, as of Release 4.5B, you cannot use the enhancements in the ALE environment for the BOR service provider.