hi,

I cerate a new configuration in employee modules when I trying to save the forum getting an error:

The operation cannot be completed:
- Create/update: a mandatory field is not set.
- Delete: another model requires the record being deleted. If possible, archive it instead.

Model: contract.notification (contract.notification), Field: Contract Reference (name)

here is my code:

class NotificationState(models.Model):
    _name = 'contract.notification'
    _inherit = 'hr.contract'

    struct_id = fields.Many2one('hr.payroll.structure', string='Salary Structure')

    contract_notification = fields.Char(string="contract_notification", compute="get_notification")

    notification_type = fields.Selection([
        ('week', 'Week'),
        ('month', 'Month'),
        ('day', 'Day'),
    ], string="notification by", track_visibility="onchange")

    @api.depends('struct_id')
    def get_notification(self):
        for rec in self:
            if rec.struct_id:
                if rec.struct_id in rec.env['hr.payroll.structure'].search([]):
                    rec.contract_notification = rec.notification_type
                    print("israa")