Solution : https://service.sap.com/sap/support/notes/1228601 (SAP Service marketplace login required)
Key words :
user-independent table control variants, user-specific table control variant, defining line layout variants, relevant clearing transaction screen, table control variants defined, display customer-defined fields, customer-defined fields, user-specific variant, 'settings -> line layout', line layout variant
Related Notes :
| 1073742 | FB05: System variant not taken into account |
| 647773 | Open item processing: Displaying customer-specific fields |
| 121550 | User settings table control |