Sometimes we need to modify standard SAP transactions in FI for field movements . This blog is intended to provide a step by procedure of user exit creation for this field movement to occur instead of modifying standard SAP programs with an example scenario.
Example Business Scenario Company A has created a special purpose ledger (ZZHYP say) would like to populate 4 digit trading partner(VBUND) in the special purpose ledger .The field will only be used for reporting and is only needed in the Special Purpose Ledger. But the available data or the current values are present in 3 digits only. So Company A would like to change the entire 4 digit trading partner populated from FI to 3 digit trading partner in the special purpose ledger.
For this purpose, a standard sap modification has to be done, but SAP allows you to enhance FI/CO features without modifying the standard code which are often collectively referred to as "user exits," SAP Enhancements are used to expand the standard functionality within SAP. Enhancements use function modules and are called from the standard SAP code. Each module in the system has a set of delivered enhancements that help companies expand the standard functionality where they need it. So here we create a Z program to insert our code for changes that has to be done and customize it. Hence when the data flows from FI to SPL, it will pass through the user exit that we have created to get the required result.
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