Hello Rajesh:
I don't think that question belongs to this forum. Anyway, to create a BAPI in a nutshell you need access to an ABAP Workbench editor, ABAP knowledge and Developer privileges:
1) BAPIs in General are created in two parts, first a Function Group and then the Function Modules.
Both user defined Group/Modules names must start with Z or Y.
2) Using the Object navigator (SE80) we must click on "EDIT OBJECT" ->"FUNCTION GROUP". Some dataFields
must be maintained:
3) With the previously created FunctionGroup, a new FunctionModule can be added. In Object Navigator
mark the option "EDIT OBJECT" ->"FUNCTION MODULE" and click CREATE (F5) The following steps must be
performed:
After the creation of the FunctionModule, we must define the Interface (parameters for
external use) and the processing logic (the code itself).
4) Possible values for parameters are:
When defining this parameters, the data and dataTypes must be available globally, that is, in the
ABAP Dictionary, also, NO GENERIC DATA TYPES MAY BE USED FOR A VARIABLE IN THE INTERFACE, such as int,
char, etc.
5) An example for import/export parameters definition is as follows
ParameterName.- PORTAL_LOGON_NAME
Type.- LIKE
Associated type.- Z_LOGON_ID (previously defined in the Dictionary)
Optional .- OK
PassValue.- OK
ParameterName.- CLIENT_DATA
Type Spec.- LIKE
Associated type.- Z_CLIENTS_1 (a table in the Dictionary, meaning that a structure
will the result of this RFC)
PassValue.- OK
Exception.- ERROR_CLIENT_DOES_NOT_EXIST
6) Now he actual processing logic must be set, as ABAP source code. In this case, we get a name for User
logon (e.g. "Reporter") and fetch it's user ID in a mapping table. Afterwards, with this id, go to
clients table and get the client details.
TYPES: BEGIN OF client_eq_type,
client_logon TYPE int4,
client_number TYPE int4,
END OF client_eq_type .
DATA: client_eq TYPE client_eq_type,
temp_client_id TYPE int4.
SELECT SINGLE client_number
FROM zclients_code_eq
INTO CORRESPONDING FIELDS OF client_eq
WHERE client_logon = portal_logon .
IF sy-subrc <> 0.
RAISE error_client_does_not_exist .
ENDIF .
temp_client_id = client_eq-client_number.
SELECT SINGLE *
FROM zalex_clients_1
INTO CORRESPONDING FIELDS OF client_data
WHERE client_id = temp_client_id.
IF sy-subrc <> 0 .
RAISE error_client_does_not_exist .
ENDIF .
ENDFUNCTION.
7) Test the function and activate.
😎 Now this is very important. Go to attributes in the SE80 function Module and <b>enable the Remote Call for this function, in order
to set it as RFC. PROCESSING TYPE -> REMOTE ENABLED MODULE</b>
I hope that helps
Alejandro
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