Error while sending Sales Order - using BizTalk

Hi, I have a problem while sending the sales order using Biztalk option. Sales Order → Functions → Send Biztalk Sales Order Cnfmn. Error Message ---- This Message is for C/AL Programmers: Couldnot Invoke the member Send. The OLE Control or Automation server returned an unknown error code. -------------------------------------------------- I am using Biztalk Server 2004, MBS Navision 4.00, SQL Server option, NAS 4.00. I have followed the Setup procedure for the Biz talk as per the PDF for Commerce Gateway. Please do help me, if anybody has some solution. Thanx in Advance.

I have the exact same error message when trying to send a purchase order request. My difference is that I am using Biztalk 2006, Nav 5.0 and using SQL Server 2005. Anyone know how to fix this issue?

This error means there is a variable in this code not registered