Programming a BAPI consists of some tasks like:
• Defining BAPI Data structures ( using SE11 )
• Creating BAPI Function Modules (For each method)
• Defining BAPI Methods in the BOR
• Generate and release
1. Defining BAPI Data structures: This is the basic step followed while creating BAPIs. All the relevant structures that are required for BAPI have to be created using T-Code SE11. The structures can be created for Import/Tables parameters.
2. Creating BAPI Function Modules: We must create new function group for each BAPI. If the BAPIs are related then the same can be grouped under the same FUNCTION GROUP to enable the sharing of global data amongst the related BAPIs.
3. Defining BAPI Methods in the BOR: When creating a new object type in BOR (Business Object Repository), there can be two possibilities. Either it is created as a subtype of an existing business object or it is created as a new business object from scratch. Create a business object using the T-Code SWO1. The business object gets created with the standard interface that contains an Interface IFSAP, an Attribute ObjectType, and two methods namely ExistenceCheck and Display. All these cannot be changed. You can add a method to the business object. For this, we will choose from the menu path, Utillities -> API methods -> Add method. To use the business object Object type status has to be set to Implemented.
4. Generate and Release: Go to SE37 and release the API enabled Function module. In the Object created in the BOR, set the status of Object Type Component to Released.
You can then display the BAPI in the BAPI Explorer. Invoke the same using the T-code BAPI.
Also have a look at below links.
http://www.allsaplinks.com/bapi_example.html
http://www.erpgenie.com/sap/abap/bapi/example.htm
http://searchsap.techtarget.com/originalContent/0,289142,sid21_gci948835,00.html
I hope it helps.
Reward Points if found helpfull....
Cheers,
Chandra Sekhar.
Bluesky
