Hi MartinK,
SOP and Inventory will not have any records of the INVxxxx001, only the RM tables will (and possibly GL with respect to the RM records).
I recommend checking these points further:
1. What happens when you are in the Receivables Transactions Enquiry - Document and try to zoom to the INVxxxx001 invoice? Does it take you to the INVxxxx document (Sales Transaction Enquiry Zoom)? If not, do you get any error messages?
2. When you do an enquiry for the INVxxxx document in the Receivables Transactions Enquiry - Document and try to zoom to the INVxxxx001 invoice, do you get redirected to the correct invoice? Is it the same invoice that came up in the Point #1?
I am really not keen on deleting the records tbh as usually this is a valid transaction. Maybe try sending me the results of the scripts below (tristanthor@msn.com):
select * from SOP30200 where SOPNUMBE in ('INVxxxx','INVxxxx001')
select * from SOP30300 where SOPNUMBE in ('INVxxxx','INVxxxx001')
select * from RM00401 where DOCNUMBR in ('INVxxxx','INVxxxx001')
select * from RM20101 where DOCNUMBR in ('INVxxxx','INVxxxx001')
select * from RM30101 where DOCNUMBR in ('INVxxxx','INVxxxx001')
Please save the results to a .RPT file for better viewing on my part.
I actually came about this issue in the past already, hence the reason I am quite familiar with it. I believe there was a KB regarding this when I was with Microsoft Support, but they probably tagged it already as an internal article since it's not searchable online.
Let me know if you have further questions.