You must expose an RFC-enabled function module as a callable object to be able to execute it within a process modeled with Guided Procedures (GP).
The GP framework enables you to import any function module, thus allowing you to reuse the modules you have implemented in your system without having to modify their implementation.
A connection is configured to the system where the RFC-enabled function module resides.
See: Maintaining RFC Destinations
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1. Open the gallery and choose Create Callable Object from the contextual panel.
2. From the Type list, select Service → External Serviceand enter the required basic data as follows:
Parameter |
Description |
Name |
Enter an arbitrary name for the callable object. |
Description |
Describe the callable object by entering a brief description of its functions, for example. |
Original Language |
Choose the language, in which the translatable texts of the object definition are being created. |
Folder |
Select a folder where the callable object definition is stored. |
3. Choose Next to open the Define Object screen.
You must select:
a. Logical destination
From the Logical Destination dropdown box, select one of the available RFC destinations.
b. Service
To search for a service, enter either its name in the field Function Name, or the group name in the field Function Group, and then choose Search.
You can use wildcard characters.
4. Choose Next to open the Define Input screen.
The input parameters of the service are automatically detected.
5. Choose Next to open the Define Output screen.
The output parameters of the service are automatically detected.
6. Choose Next to open the Set Configuration screen.
Configure the exception handling for the service. The possible configurations are described in the following table.
Parameter |
Value |
Description |
Case 1: No Exception Handling |
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Error Handling Mode |
No Error Handling |
Choose this option if the service does not implement fault handling. |
Case 2: Reporting to a Structure |
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Error Handling Mode |
Reported in Structure |
BAPIs can implement error handling using reference structures. For such services, you can choose this option to enable errors to be reported in the relevant structure. |
Error Structure Reference |
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Select the structure that is to hold the error information. |
Error Field Name |
|
Select the name of the field that is to contain the error identifiers. |
Error Values |
For example, E, A, and so on |
Enter an error identifier as defined in the BAPI implementation.
|
Error Message Field Name |
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Select the appropriate name of the field that is to contain the error details. |
7. Choose Next, and then Finish and Open.
The callable object design time opens. You can edit the object definition here.
Optionally, you can grant permissions to other users to view or modify the object. To do that, open the Permissions tab page.
8. To activate the object, choose (Activate).
For an example of exposing an RFC-enabled function module as a callable object, see Importing a BAPI in Guided Procedures.