Feature request: Ability to change the stock quantity unit for a product

Currently it is not possible to change the stock quantity unit for a product once it has been added. I’d like to have a feature for doing that. It would probably need a conversion factor.

Also, here is the current error message in case someone else is also searching for this issue:

Integrity constraint violation: 19 qu_id_stock cannot be changed when the product was once added to stock

[berrnd]

This is now done.

• When the product was NOT yet added to stock, any stock QU can be selected (like before)
• When the product was once added to stock, there needs to exist a corresponding unit conversion for the new QU
  • => All stock amounts are converted accordingly based on that factor
  • => The UI only allows to select QUs for “QU stock” where a corresponding conversion exists
  • => The API enforces/checks that a corresponding conversion exists

[Ape]

For me the drop down wasn’t disabled and I got that error log message. I think it is only disabled on the first purchase and not with the inventory action. I’m using version 3.0.1 so this may be something that is already fixed in master.

Is there any way to change the stock QU other than deleting the product and adding everything back with a brand new fixed product? I find that my first decision for the QU wasn’t always the correct one.