Solution : https://service.sap.com/sap/support/notes/455238 (SAP Service marketplace login required)
Key words : 
dbsl central database interface requires, set mssql_ variables differ, dbsl version 46d, support package level 411, solution standalone programs, mssql_ environment variables, database connection, environment variables, environment var, profile parameters
Related Notes : 
       
| 98678 | SQL Server Connection Issues |