Hi guys,

I was writing a small module on 18.0 EE essentially it goes to send an email with a custom receipt. The print function from the record creates the pdf correctly, but I can't create the ir.attachment in any way, I've tried several times creating the attachment first and adding it to the email with 6.0,receipt_attach_id but nothing. It always continues to give me an error when sending email on the lines of attachemnt id 259 user id 2 not found etc. If you could help me that would be perfect, thanks!

<record id="action_report_owner_receipt" model="ir.actions.report">
        <field name="name">Ricevuta Soggiorno</field>
        <field name="model">pms.reservation</field>
        <field name="report_type">qweb-pdf</field>
        <field name="report_name">property_management.report_owner_receipt</field>
        <field name="report_file">property_management.report_owner_receipt</field>
        <field name="paperformat_id" ref="paperformat_owner_receipt"/>
        <field name="binding_model_id" ref="model_ciao_reservation"/>
        <field name="binding_type">report</field>
        <field name="print_report_name">'Ricevuta - %s' % (object.ota_res_id or object.pms_res_id or '')</field>
    </record>

report_action = self.env.ref('property_management.action_report_owner_receipt')
pdf_content = report_action._render_qweb_pdf(self.id)[0]

mail_values = {
            'subject': subject,
            'email_from': from_email,
            'email_to': self.guest_partner_id.email,
            'body_html': body_html,
            'auto_delete': False,
            'attachment_ids': [
                (0, 0, {
                    'name': f'Ricevuta_{self.ota_res_id}.pdf',
                    'datas': base64.b64encode(pdf_content),
                    'mimetype': 'application/pdf',
                })
            ]
        }
mail = self.env['mail.mail'].sudo().create(mail_values)
mail.send_mail(force_send=True, raise_exception=True)