HI,
well the annswer of ur question is ,BW supplies the Open Hub Service to meet requirements for getting information to third-party applications from BW. The data types, field names, and field lengths are often not the same in BW as they are in the external application, or additional value manipulation is necessary. For this, an ABAPer needs to code the custom logic for the manipulation in the new infrastructure called a BADI (Business Add-in). BADIs, based on ABAP OO, are the new way to accomplish custom enhancements in a controlled way. The old way was called a u201Cuser exit.u201D
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