Solution : https://service.sap.com/sap/support/notes/637611 (SAP Service marketplace login required)
Key words :
service parameter ~rfc_function_exists, service parameter ~rfc_work_pi, usestandard functions susr_login_check_rfc, customized its_ variants, rfc function function_exists, thatcheck_fb_name function, function installed, symptom user, sapxginet xgateway, error message
Related Notes :
| 422619 | Enabling SAP Systems for ITS Flow-Logic |