Solution : https://service.sap.com/sap/support/notes/736595 (SAP Service marketplace login required)
Key words :
transaction se11 including enhanced fields, standard batch input processing, easy enhancement workbench, enhance table kna1, user exit de_bale, user exit de_aale, component type 'gb_bapiupd', mapping occurs automatically, replicate indicator 'field, create structure ci_cust
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