Function Modules

Function Modules

Ex1 on function module with importing,exporting and exceptions

Business Req: Create a FMOD by name zget_cust_details to fetch customer details

STEP1: Create a FM in SE37

• Go to SE37
• Give a FM Name: ZGET_CUST_DET
• Create
• Provide Function Group name and Desc
• Click on SAVE, Press Enter
• Provide the importing parameter as below

 And exporting parameter as below

 And the exception as below

Write the below code :

• Save->Act.  
• Test with a valid custno  
• Test with a invalid custno
• Test without a custno

STEP2 : Now call the function module in main program

• Click on ‘pattern’ button  
• Provide the function module name and press enter   
• The code will be automatically generated
• Modify the code as below

• Save->Act.
• Test with a valid custno
• Test with a invalid custno
• Test without a custno

Ex2 on function module with TABLES Option

Business Req: Create a FMOD by name zget_cust_List to fetch List of customer details for a given country

STEP1: Create a FM in SE37

• Go to SE37
• Give a FM Name: ZGET_CUST_LIST
• Create
• Provide Function Group name and Desc
• Click on SAVE, Press Enter
• Provide the importing parameter as below

Provide the Int.table under TABLES as below

Write the below source Code

Save->act->test

STEP2 : Now call the function module in main program

• Click on ‘pattern’ button
• Provide the function module name and press enter
• The code will be automatically generated
• Modify the code as below

Save->act->test

Ex3 on function module with CHANGING Option

Business Req: Create a FMOD by name zget_cust_List to fetch List of customer details for a given country

STEP1: Create a FM in SE37

• Go to SE37
• Give a FM Name: ZCHANGING
• Create
• Provide Function Group name and Desc
• Click on SAVE, Press Enter
• Provide a changing work area as below

Write the below code

Save->act->test

STEP2 : Now call the function module in main program

• Click on ‘pattern’ button
• Provide the function module name and press enter
• The code will be automatically generated
• Modify the code as below

Save->act->test