bapi for sales order

Hi to all,

i had used the bapi BAPI_SALESORDER_CREATEFROMDAT1 for sales order creation.

but iam getting a message the document type does not exit.

I had executed in debugging mode but what i found is the table ORDER_HEADER_IN is initial even though the pass the data thru an intenal table.

could any one help me out.

Thanks & Regards,

satish