Solution : https://service.sap.com/sap/support/notes/571464 (SAP Service marketplace login required)
Key words : 
1 content            import support package 2, 0b            import support package 8, reference time characteristic, 0b support package 08, 1c support package 02, bw support packages, data object 'g_s_is', syntax error reason, support package, data object
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