Solution : https://service.sap.com/sap/support/notes/889449 (SAP Service marketplace login required)
Key words :
symptom runtime error sapsql_array_insert_duprec occurs, additional information pre-requisites, follow -note -0000750142 conflict detection, prerequisites program error, terms mobile engine, 40 aba support package 15, 20 aba support package 57, sync type syncbos, foreign key reason, follow note 972503
Related Notes :
896073 | Inserting duplicate record during foreign key failure (2) |