Back-capture Stock Revaluation

Hi all. We’re having an issue with our efforts to back-capture data from our previous ERP into ERPNext. We are currently nearly up to date with invoicing, however stock revaluations fell behind. Right now, we are trying to put in a stock revaluation (in this one we are adjusting the valuation rate without adjusting quantities) and on submission, it complains about a serial number being needed in a delivery note. Unfortunately we can not just cancel and amend each delivery note (and by extension invoice) that is connected as we have hundreds of deliveries, and there are many more revaluations to be put in. Is there any way to do the revaluations without mass cancellation of the affected documents?