Hi Reshoi,
Thank you for your detailed information. I understand that you have a very special case.
Please test such an approach very carefully. I hope it will work out well.
Alternatively, did you consider to build up Inventory Management from scratch? There are ways to minimize the downtime and it would give you the opportunity to improve the data model and data flow. E.g. I recommend to add a Goods Movements DSO into the data flow.
Best regards,
Sander