Update stock move record which is done odoo
<p>I am working in odoo 8, i have to update the stock move which is done. i.e. suppose the move was done and state becomes "done" but the quantity entered was incorrect, so to correct it i need to reduce the quantity of that move. 
I am trying to update the quantity but it gives me error as :</p>

<pre><code>_('Quantities, Units of Measure, Products and Locations cannot be modified on stock moves that have already been processed (except by the Administrator).'))
</code></pre>

<p>I was trying as below:</p>

<pre><code>move.write({'product_uos_qty':correct_qty})
</code></pre>

<p>I also tried this:</p>

<pre><code>move.sudo().write({'product_uos_qty':correct_qty})
</code></pre>

<p>Always i get the same error.</p>

<p>Please Help</p>

<p>Thanks,</p>