Solution : https://service.sap.com/sap/support/notes/1583655 (SAP Service marketplace login required)
Key words :
langu enparamid 2051descn enable user id validation, iv_user_id_str importing string rv_error returning wdy_boolean - insert, release v1000 sapk-v1003ingrcfnda - sapk-v1003ingrcfnda, detail desc enable user id validation, compliance > access control > maintain configuration settings, section transport organizer tools > administration2, nomultiplehelp source 1help field grac_yesno4, abap webdynpro change manual step, set system change option, lv_request_for ne grac0_request_for-multi
Related Notes :
| 1603237 | Does Access Control Support EUP for Custom fields |