Solution : https://service.sap.com/sap/support/notes/872720 (SAP Service marketplace login required)
Key words :
sap profile parameter abap/hash_itab_loop_fs_or_ref_check, basis support package 15, hashed table endloop, single record delete, duplicate delete adjacent, current loop line, delete table itab, table delete itab, kernel patch level 88, loop field symbol
Related Notes :
| 871851 | GETWA_NOT_ASSIGNED as of patch level 84 |