Solution : https://service.sap.com/sap/support/notes/528997 (SAP Service marketplace login required)
Key words :
variant maintenance allowed sd_variant_maintain = 'u' =>, maintain user-specific display variants, process billing due list, maintain standard display variants, display variant maintenance, user-specific variants, advance correction proceed, function module vkdfs_alv_display, responsible function module, maintained sd_variant_maintain = 'x' =>
Related Notes :
| 1442758 | VFX3: Standard display variant is missing |
| 300633 | General administration and setting information for ALV varia |
| 217156 | Missing authorizatn check for displ.variant maint. |