BAPI、BAdI、增强和修改有什么区别？

Question

BAPI （业务应用程序编程接口）、 BAdI （业务插件）、客户增强和客户修改之间有什么区别？

Answer 1

A BAPI is an API, which is either designed by you or a simple function module offered by SAP. You can use this API for "business" operations.

BAdI 's (Business Add-Ins) are the new form of user exits, designed in form of interface-architecture, where a custom class can implement an interface, and its interface implementation than can be activated to get called before, after or in between sap-standard-procedures. This allows customers to provide custom code and modify data. Usually one uses BAdI's of SAP in a Z-class to add / change some standard logic, which SAP would usually process.

Enhancement 's are a possibility to either "contain" BAdI classes or to offer "plain text modification of SAP source codes.

Customer modification is tight bound to enhancements when it deals with coding. With data dictionary objects this simply means the ability of appending Z-structures, for example.

Answer 2

BAPI - It is nothing, but a FM which is used to load the data into SAP system. The data may be from the legacy system.

BADI - They are the enhancement which can be applied to the standard SAP program as per the business requirement. BADI are the newer version of user exits which uses ABAP OOPs concept.

Check this article to find BADI using function module: Find Bapi using funcion module