Solution : https://service.sap.com/sap/support/notes/734847 (SAP Service marketplace login required)
Key words :
short dump 'syntax_error' short text'syntaxfehler im programm saplstuo', wholefunction group stuo remains unavailable, function group stuo' press enter, utilities -> repair function group3, enter function group stuo, function module contained, screen 'consistency check, remote services logs, prerequisites includes lstuou10, newer support package
Related Notes :
| 452407 | CALL_FUNCTION_NOT_ACTIVE for STUO function modules |