Delivery block issue

Hi Gurus,

This ia a query from one of my client. The problem is whenever an sales order is executed there is an popping message saying that for that customer there is a general delivery block. but I have checked in header as well as schedule line delivery block but I there were no blocks. but this message is apperaing for all the sales order created.

Can anyone give me a suggestion on this.

Thanks,

santhosh