Hi !

I'm looking for the correct group name to hide menu item "create invoice" button!
I'v tried to add a "group= " in the button field. 
It works and I can hide for everyone, but I want to restrict the access only to admin or better to the "sale administrator" group or to a custom group I've created : "sale accountant"

My last try was this, but not working :

<button name="%(sale.action_view_sale_advance_payment_inv)d" string="Create Invoice"

                        group="sale.order.manager"

                        type="action" context="{'default_advance_payment_method': 'percentage'}"

                        attrs="{'invisible': ['|',('invoice_status', '!=', 'no'), ('state', '!=', 'sale')]}"/>

does anyone has already done that ?

Thanks in advance