Warning message is coming at the status bar in the sales order instead of error message

Hi All,

We have a scenario here where we need to block 2 customers for 2 sales document types so that these customers cannot use in the sales order.

When we raise a SO with these customers,system should show error message as " Customer xxxx assigned order block".

But we are getting the warning message as " Customer xxxxx has delivery block: Overall Block".

Help me to get the Error message as " Customer xxxx assigned order block".

Thanks,

Pavan.