Hello, 

INTRODUCTION

You can jump directly to the question if you want...

We are evaluating Odoo 14 as our accounting program as we have an old system that works, but needs a complex architecture (One data server (linux), one license server (windows) and then n client computers).  This old system starts to fail and we are willing to migrate to a newer thing.

I'm a programmer, not an accountant, but I'm in charge of validating the options we are thinking about.

Then, we are thinking on a dockerized Odoo system inside a NAS, which could be accessed from everywhere using a simple web navigator.

THE QUESTION ITSELF:

Our accountant department manager is telling me she can't delete invoices.

Of course this is not a normal practice, but in case of making a mistake she would like to be able to do it.

She is aware she can set the invoice to draft again and then update it, but in case it's the last invoice before closing the year (or any other accounting milestone), she would like to remove it from the system, of course, before being paid...

This should be able to be done in both invoices to customers and from vendors.

How can this be done?

As an example (now I have only 3 invoices in the demo system) 2 in vendors and one in customers.

I have both vendor invoices cancelled and not paid, but even that, I can't remove those invoices from the system.

In the invoice I have in the customers section, it sports a draft status and it's neither paid, but can't be deleted.

In all cases the message that appears is:

User Error