The OSS note that you have given to me doesn't help me, because I will be in the same situation, now it's not working when I have WEBRE active and with the OSS note given will not work if I have WEBRE inactive.
The error is coming when the delivery note has 2 or more items referring to the same item of a sales order and after I have implemented the OSS note 1090663 the error "Document contains same order item more than once" is coming when I have the field WEBRE active (with flag) in the PO at item level.
Like a solution would be to not use this field anymore in the vendor master data or in the info record, the cases when this field (WEBRE) is active is hardly ever, but I suppose that exist another OSS note which includes also this case.
Thank you, for your reply.
