SAP Function Module search on RTG
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RTGT_ASSET_POOL_WRITE_DOCUMENT - CHDO RTGT_ASSET_POOL => Gen. by RSSCD000
RTGT_CLASS_WRITE_DOCUMENT - CHDO RTGT_CLASS => Gen. by RSSCD000
RTGT_FIN_TRANS_WRITE_DOCUMENT - CHDO RTGT_FIN_TRANS => Gen. by RSSCD000
RTG_UPDATE - Rating Update Module
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