from odoo import fields, models, api class Task(models.Model): _inherit = "project.task" equipment_id = fields.Many2one("bemade_fsm.equipment", string="Target Equipment") work_order_contacts = fields.Many2many(related='sale_line_id.order_id.work_order_contacts') site_contacts = fields.Many2many(related='sale_line_id.order_id.site_contacts') equipment_ids = fields.Many2many(related='sale_line_id.order_id.equipment_ids')