hello

thank you for your answer . i got error on dependencies 

" Unknown field 'invoice_lines' in dependency 'invoice_lines.quantity' "

Hi,

Try creating a new computed field,

• Go to the product form view in Odoo Studio
• Add a new field, name it as "x_total_invoiced_qty"
• Set its type to "Float" and mark it as a computed field

for record in self:

    total_invoiced_qty = 0

    invoice_lines = self.env['account.move.line'].search([

        ('product_id', '=', record.id),

        ('move_id.state', '=', 'posted'),

        ('move_id.invoice_date', '>=', '2023-01-01'),

        ('move_id.invoice_date', '

        ('move_id.move_type', 'in', ['out_invoice', 'out_refund'])

    ])

    for line in invoice_lines:

        if line.move_id.move_type == 'out_invoice':

            total_invoiced_qty += line.quantity

        else:  # out_refund

            total_invoiced_qty -= line.quantity

    record['x_total_invoiced_qty'] = total_invoiced_qty

set these field as the depending fields -> line_ids.quantity,line_ids.move_id.state, line_ids.move_id.invoice_date,line_ids.move_id.move_type

Thanks