No WBS billing element found
I have created project in company code( say for example 1000), .And after that I created sales order ( in sales order header company code to be billed (VBAK-VF_BURKS) is ( for example 2000).
Now postings has been done against project and I created DMR (debit memo request). But when I am creating invoice for DMR am getting message that-- But when I am creating invoice am getting message that no WBS billing element found while substituting WBS element.
Message identification/number is VF156.
Please let me know why am I getting this message ( did I miss any config)? When I debugged with ABAP'er I found that ( if replacing company code of sales order from 2000 to 1000) not getting any message.
So my first question is from where the filed company code in sales order header populates ((VBAK-VF_BURKS)) .
And how can I overcome this message?