树液BAPI Interview Questions and Answers

Q1. What is BAPI in SAP

Ans:BAPI is a Business Application Programming which provides access to processes and data in business application systems such as R/3. BAPIs are defined as API methods of SAP business object types. Business object types and their BAPIs are described and stored in the Business Object Repository (BOR). A BAPI is implemented as a function module, that is stored and described in the Function Builder.

Or

BAPIs are defined as API methods of SAP Business Object Types. These object types are used within the Business Framework to enable object-based communication between components. Business objects and their BAPIs enable object orientation to be used in central information processing in companies.

Q2。解释创建BAPI的步骤？

Ans:

• 1.Creating a structure in SE11
• 2.Creating the function module in SE37
• 3.Creating the business object in SWO1
• 4.在Bapi Explorer中查看创建的BAPI
• 5.测试bapi。（bapi tcode）

Q3. What are the uses of BAPI?

Ans:Using BAPI,we can connect :

• New R/3 components.
• Non-SAP software.
• Legacy systems.
• Isolating components within the R/3 System .
• Connecting R/3 Systems to the Internet.
• PC programs.
• Workflow applications.

Q4。BAPI和RFC有什么区别？

Ans:

BAPI:

BAPI is a RFC enabled function module and we create business objects and registered in the BOR (Business Object Repository) which can be accessed outside the SAP system by using other applications (Non-SAP) Languages such as VB or JAVA. That time we only define the business object and its methods from external system.

RFC:

不同系统在SAP环境中的应用之间的通信，包括SAP系统以及SAP系统与非SAP系统之间的连接。远程功能调用（RFC）是用于SAP系统之间通信的标准SAP接口。RFC调用要在远程系统中执行的函数。

Q5. What are the types of RFCs

Ans:

• Synchronous RFC
• Transactional RFC (tRFC)
• Queued RFC (qRFC)

Q6.What are RFC interfaces?

Ans:ABAP程序的呼叫接口

A calling interface for Non-SAP programs.

Q7. How do you call the RFC FM in the ABAP program?

Ans:通话功能...目标语句。目标参数告诉SAP系统，调用函数在呼叫者以外的系统中运行。

Q8。RFC的功能是什么？

Ans:

• 将所有参数数据转换为远程系统中所需的表示形式
• Calling the communication routines needed to talk to the remote system.
• Handling communications errors, and notifying the caller, if desired ( using EXCEPTIONS parameter of the CALL FUNCTION).
• 将数据转换为远程（目标）系统可以理解的格式。
• 调用某些开始与远程系统进行通信所必需的例程。
• Handle errors that might occur in the process of communication.
• RFC可以处理错误本身。
• every BAPI is a RFc whereas every RFC is not a BAPI.
• RFC's are not registered in the BOR.

Q9. What are the main characteristics of BAPI?

Ans:

• Support of synchronous and asynchronous communication.
• 支持机器对机器和人类对机器的通信。
• Communication support for components that are narrowly linked and coupled through the Internet.

Q10。SAP中的业务对象类型是什么？

Ans:A business object type is the representation of a business object, like an human work force or a Invoice, in an SAP System. It encompasses both the functions and the data into single object.

Q11. What are the advantages of Business Objects type in SAP?

Ans:We can reduce the complexity of Systems structure by dividing the complex structures into smaller units.

Q12. What is the Business Object Repository?

Ans:The Business Object Repository (BOR) is root access point for the SAP business object types and their BAPIs. The BOR was developed for SAP Business Workflow.

Q13. What are the uses of Business Object Repository?

Ans:

• 允许SAP系统中所有数据和过程的面向对象的视图。
• 根据组件层次结构安排各种业务对象类型。
• It ensures BAPI interface stability.
• It manages BAPIs in release updates.
• It creates instances of SAP business objects.

Q14. What is the Returning parameter in BAPI?

Ans:return parameter RETURN contains success or error messages for the BAPI, and depending on the SAP R/3 Release has the dictionary structure BAPIRETURN, BAPIRETURN1, BAPIRET1, BAPIRET2.