Hello there,

Unable to display the currency symbol (the dollar symbol $) in the last colum (Taux horaire) of this tree view.

The currency_id should be the one of the main company.

Could you help? Where is my error?

In the tree view :

<field name="taux_horaire" widget='monetary' />
<field name="currency_id" invisible="1"/>               

In the Python :

class account_analytic_line(models.Model):
    _inherit = 'account.analytic.line'
 
    currency_id = fields.Many2one("res.currency", related='user_id.company_id.currency_id', string="Currency", readonly=True, required=True)
    to_invoice = fields.Boolean(string="To invoice", default=True)
    taux_horaire = fields.Float(string="Taux horaire", related='user_id.employee_ids.product_id.standard_price' )