Hi, create the model.

# -*- coding: utf-8 -*-

from odoo import fields,models,api,_

from odoo.exceptions import UserError

class AccountJournal(models.Model):

_inherit = "account.journal"

and a view for the account.journal model

<odoo>

<data>

<record id="action_boleta_venta1" model="ir.actions.act_window">

<field name="name">BOLETA DE VENTA1</field>

<field name="res_model">account.journal</field>

<field name="view_id" ref="account.account_journal_dashboard_kanban_view" />

<field name="view_mode">kanban</field>

<field name="context">

{

'type':'out_invoice',

'journal_type': 'sale',

'type_code':'03',

}

</field>

<field name="domain">

[('type','=','out_invoice'),('journal_id.invoice_type_code_id','=','03')]

</field>

<field name="search_view_id" ref="account.view_account_invoice_filter" />

</record>

</data>

</odoo>

locate the view and the action and edit the view manually test. switch to

account.journal.dashboard.kanban.

<button type = "object" name = "action_boleta_venta1" class = "btn btn-primary btn-sm">

<span> New 5555ll </span>

</button>

errors:

AttributeError: type object 'account.journal' has no attribute 'action_boleta_venta1'

You have to define the function with the name action_boleta_venta1 in account.journal model