Solution : https://service.sap.com/sap/support/notes/140308 (SAP Service marketplace login required)
Key words :
additional key words afscategorycategory structuredummy structuretransaction j4kzj_4kcatsj_4kcatrj_4keancj_4kcslo, choose 'create / maintain category ean/upc fields', menu/edit/creatd/create related field//, choose 'create / maintain category structure', menu/category-structure/unlock structure//, menu/category-structure/lock structure//, menu/category-structure/display<--> change//, menu/category-structure/delete structure//, choose 'delete category structure / relevance', category command table entries'
Related Notes :
| 324765 | category upgrade for systems without categories |