The warning and error messages are poor in D365F. They are not designed for business users and very often very generic. Not a good design giving a poor user experience.

As an example:
Reversal of GL transaction (not subledger transaction but simple GL journal).

There are dozen of reasons the transaction cannot be reversed, like period closed, year end closure procedure run, etc.

If the system makes validation, why not to display what was validated and what was the reason of the failure?
And the message should be in the readable form, which can be understandable by the accountant, not by IT or developer, so the business can take an action.

I recently had to raise a ticket with MS support, to investigate the reason of reversal failure. Why?
This could be simply avoided with the better design.