Sales Orders On Delivery Due List

In the delivery due (VL10A)there are docuemtns in the work list athat should not be there. Example the sales order document line have all been rejected or the document lines items have been delivereid except for the rejected lines and these lines are shouling on the delivery due, and are not deliverable.

There is a correction program RVV05IVB that fixes this issue with the indexes.

But what I need to know is what is the cause for these documents showing on the delivery due.

Any help would be appreciated.

Thank you,