SAP Function Module search on G_U
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GRUNDBUCH_WRITE_DOCUMENT - CHDO GRUNDBUCH => Gen. by RSSCD000
GRUNDSTK_WRITE_DOCUMENT - CHDO GRUNDSTK => Gen. by RSSCD000
G_USAGE_VAR_IN_VAR_DELETE - Maintenance of Variable Usage
G_USAGE_VAR_IN_VAR_INSERT - Maintenance of Variable Usage
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