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BAPI – Business Application Programming Interface A BAPI is essentially SAP’s version of an API. It is a standardized interface that allows external applications or other SAP modules to: ● Read SAP data ● Create or update SAP business objects ● Trigger SAP processes BAPIs follow strict standards and are guaranteed by SAP to remain stable across versions. Key Points About BAPIs ● Always provided by SAP (not custom). ● Used for data integration or automating business processes. ● Ideal when external systems (like middleware, web apps, or mobile apps) need to interact with SAP. Example BAPI_PO_CREATE1 Used to create purchase orders programmatically. Can be called from SAP, external systems, or automation scripts. π—•π—”π——π—œ – π—•π˜‚π˜€π—Άπ—»π—²π˜€π˜€ 𝗔𝗱𝗱-π—œπ—» A BADI is an enhancement technique used to add custom business logic to SAP’s standard processes. Think of it as a place where SAP provides a hook, and your organization can implement additional logic without modifying SAP’s core code. Key Points About BADIs ● Used to add custom validations, rules, or functionality. ● Do not replace SAP’s standard behavior—only enhance it. ● Safe for upgrades because enhancements sit outside standard code. Example Adding extra validation checks during Purchase Order creation. For example: ● Prevent PO creation if vendor is blocked ● Enforce custom approval logic ● Add country-specific compliance rules  

A BADI lets you plug in this custom logic without modifying SAP’s standard transaction. 

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