Vendor Promise Date on the Purchase Order

Dear Gurus,

I have a requirement from my client that updating the vendor promise date should not trigger the PO revision. There are no configuration controls available to achieve this functionality and left with an option to customize it. I have done a demo by creating a custom form and updating the Vendor Promise Date in the PO Shipment table in the development environment and its working as expected. I wanted to check if this will break or leads to any data corruption if go with this route.

Please advise.