Solution : https://service.sap.com/sap/support/notes/846069 (SAP Service marketplace login required)
Key words : 
executable program unicode checks active, support package fsri46446c17 / fsri47162023 / fsri47262009if, terms extension service generatortadir reason, newly created program /msg/r_s_korr_tadir_genflag, create object catalog entry, program /msg/r_s_korr_tadir_genflag type, /msg/r_s_korr_tadir_genflag choose, /msg/r_s_korr_tadir_genflag report, sap_basis support package 6, 20 support package lower
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