3254439 - "Unable to obtain the schema for table: <Table Name>" happens when extract data via SERVICENOW Connector in Process Intelligence

The Connector to ServiceNow has been established successfully as per the user guide.

• When extracting the data from ServiceNow, it failed with the error message as below:
  
  ---------
  ExtractionJob failed | source-system: SERVICENOW
  | exception: java.util.concurrent.ExecutionException
  | cause: java.lang.IllegalStateException: Unable to obtain the schema for table: <XXX>
  ---------
  
  
• Or when previewing the table, it gives the error message:
  
  ---------
  Something went wrong
  Error: TABLE_SCHEMA_FAILED
  Error Id:*********
  Socket Closed
  ---------

SAP Signavio Process Intelligence

Signavio, Process Intelligence, ServiceNow, Connector, Unable to obtain the schema for table,TABLE_SCHEMA_FAILED , KBA , BPI-SIG-PI-INT , Integration / Schedules / SQL Filter / Delta criteria , BPI-SIG-PI-DS , Data Source (CSV, Connector) , Problem