I have been able to use nProcess to open and display an existing Vendor record.  I am wondering what I need to do to achieve the same thing for a payable invoice.  I thought that it was batch number, division number, vendor number, and invoice number.  I can't get it to work though.  Has anyone else run into this?

I am using C# with a custom class, but the key values should be the same regardless of the language.

oSS.InvokeMethod("nProcess", BatchNo, DivNo + VendorNo, InvoiceNo);

I get an invalid vendor error with the above, so, from what I can tell, the first parameters I need to enter are DivNo + VendorNo.  Now, what the heck do I do after that.  I have tried multiple combinations of batch number and invoice number, but can't get it!!!  Does anyone have any ideas?  I keep on getting an "Invoice Number Required" error.  Where do I enter the invoice number!

BigLouie, if you are reading this, I have taken the Sage BOI and Data Files classes.