Many a times I have seen code with Selects on multiple tables to get the condition table for the given condition type. Here are a group of Function modules,. You use this procedure to create function modules in the Function Builder. In the Object Navigator (transaction SE80), choose Function Group as the object type. Enter the name of the function group and choose Enter. The tree structure of the function group appears. In the context menu of the function group, choose Create → Function Module.

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Function modules make up a major part of a SAP system, because for years SAP has modularized code using function modules, allowing for code reuse, by themselves, their developers and also by their customers.

Function modules are sub-programs that contain a set of reusable statements with importing and exporting parameters. Unlike Include programs, function modules can be executed independently. SAP system contains several predefined function modules that can be called from any ABAP program. The function group acts as a kind of container for a number of function modules that would logically belong together. For instance, the function modules for an HR payroll system would be put together into a function group.

To look at how to create function modules, the function builder must be explored. You can find the function builder with transaction code SE37. Just type a part of a function module name with a wild card character to demonstrate the way function modules can be searched for. Type *amount* and then press the F4 key.

The results of the search will be displayed in a new window. The function modules are displayed in the lines with blue background and their function groups in pink lines. You may look further at the function group ISOC by using the Object Navigator screen (Transaction SE80). Nvidia 6200 agp drivers for mac. You can see a list of function modules and also other objects held in the function group. Let's consider the function module SPELL_AMOUNT. This function module converts numeric figures into words.

Creating a New Program

Step 1 − Go to transaction SE38 and create a new program called Z_SPELLAMOUNT.

Step 2 − Enter some code so that a parameter can be set up where a value could be entered and passed on to the function module. The text element text-001 here reads ‘Enter a Value’.

Step 3 − To write the code for this, use CTRL+F6. After this, a window appears where ‘CALL FUNCTION’ is the first option in a list. Enter 'spell_amount' in the text box and click the continue button.

Step 4 − Some code is generated automatically. But we need to enhance the IF statement to include a code to WRITE a message to the screen to say 'The function module returned a value of: sy-subrc” and add the ELSE statement so as to write the correct result out when the function module is successful. Here, a new variable must be set up to hold the value returned from the function module. Let's call this as 'result'.

Following is the code −

Step 5 − The variable which the function module returns is called IN_WORDS. Set up the corresponding variable in the program called ‘result’. Define IN_WORDS by using the LIKE statement to refer to a structure called SPELL.

Step 6 − Save, activate and execute the program. Enter a value as shown in the following screenshot and press F8.

The above code produces the following output −

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