3746533 - Error "An exception with the type CX_SY_OPEN_SQL_DB was raised, but was not handled locally or declared in a RAISING clause." during migration step in Migrate Your Data app

Below error occurs during the migration step using the migration object "Routing" in the Migrate Your Data app. 

An exception with the type CX_SY_OPEN_SQL_DB was raised, but was not handled locally or declared in a RAISING clause (Message No. DMC_RT_MSG   0).

SAP S/4HANA Cloud Public Edition

exception, CX_SY_OPEN_SQL_DB, migration, Migrate Your Data, Routing, BAPI_ROUTING_CREATE, SQL, Material Task List Assignment, System Limitations, reduce , KBA , CA-LT-MC , S/4HANA Migration Cockpit , Problem