Is there a fix for when users fail to associate a Customer Return with a Shipment?

There are some transactions in Sage 500 that, if done incorrectly, cannot be undone and cannot be fixed.  Is this one of them?

The problem is that if a Customer Return is entered without being associated with a previous Shipment it will cause the Sales Order Lines Business Insights Explorer report to be incorrect.  For example, the Amt Invoiced and Qty Invoiced values obviously won't reflect the return because it was not associated with any particular Shipment/SO.  In fact the return will not be reflected at all on the SOL BIE.  I assume there are other fields and/or reports that will be off as a result of this misstep, but the SOL BIE is the one I'm currently dealing with.

After trying several different approaches to fix this, as far as I can tell, it cannot be fixed, at least not through the front end.  After the mistake is made the Sales Order Lines BIE report (and probably others) will be wrong forever.

Has anyone else encountered this?  Thoughts?

Using version 7.60.6.

Thanks.