Solution : https://service.sap.com/sap/support/notes/709262 (SAP Service marketplace login required)
Key words :
terms trigger traceon reason, sql server error log, symptom trace flags, sql server inserts, trigger sets traceflags 1204, sql server, special trigger, trigger fires, automatically set, deadlocks occur
Related Notes :
32129 | Deadlock analysis for the SQL server |