DataServices 4.0 : ODBC data source warning message for operation : , SQLState

Hello,

I use DataServices 4.0 version 14.1.1.210 to load data in an MS-SQL Server2012 database.

I meet a problem with a workflow.

This workflow is composed of single script and single dataflow.

I have a script where I record a date variable: $v_date_suppression=today - 10days and I delete all records which are date of mouvement >=$v_date_suppression.

Next, I have a simple dataflow: single source table, query, target table. In the Bulk Loader Options tab of the target table, I  select Bulk Load options:

I get a warning message:

ODBC data source <Database> warning message for operation <bulkExecSQL>: <>, SQLState <>

What's the issue ? What's the solution ?

Thanks in advance to your help.

Carole