odoo_source/addons/purchase/data/mail_template_data.xml

<?xml version="1.0" encoding="utf-8"?>
<odoo>
    <data noupdate="1">
        <record id="email_template_edi_purchase" model="mail.template">
            <field name="name">Purchase Order: Send RFQ</field>
            <field name="model_id" ref="purchase.model_purchase_order"/>
            <field name="subject">${object.company_id.name} Order (Ref ${object.name or 'n/a' })</field>
            <field name="partner_to">${object.partner_id.id}</field>
            <field name="body_html" type="html">
<div style="margin: 0px; padding: 0px;">
    <p style="margin: 0px; padding: 0px; font-size: 13px;">
        Dear ${object.partner_id.name}
        % if object.partner_id.parent_id:
            (${object.partner_id.parent_id.name})
        % endif
        <br/><br/>
        Here is in attachment a request for quotation <strong>${object.name}</strong>
        % if object.partner_ref:
            with reference: ${object.partner_ref}
        % endif
        from ${object.company_id.name}.
        <br/><br/>
        If you have any questions, please do not hesitate to contact us.
        <br/><br/>
        Best regards,
    </p>
</div></field>
            <field name="report_template" ref="report_purchase_quotation"/>
            <field name="report_name">RFQ_${(object.name or '').replace('/','_')}</field>
            <field name="lang">${object.partner_id.lang}</field>
            <field name="auto_delete" eval="True"/>
        </record>

        <record id="email_template_edi_purchase_done" model="mail.template">
            <field name="name">Purchase Order: Send PO</field>
            <field name="model_id" ref="purchase.model_purchase_order"/>
            <field name="subject">${object.company_id.name} Order (Ref ${object.name or 'n/a' })</field>
            <field name="partner_to">${object.partner_id.id}</field>
            <field name="body_html" type="html">
<div style="margin: 0px; padding: 0px;">
    <p style="margin: 0px; padding: 0px; font-size: 13px;">
        Dear ${object.partner_id.name}
        % if object.partner_id.parent_id:
            (${object.partner_id.parent_id.name})
        % endif
        <br/><br/>
        Here is in attachment a purchase order <strong>${object.name}</strong>
        % if object.partner_ref:
            with reference: ${object.partner_ref}
        % endif
        amounting in <strong>${format_amount(object.amount_total, object.currency_id)}</strong>
        from ${object.company_id.name}. 
        % if object.date_planned or object.expected_date:
            The receipt is planned for 
            % if object.date_planned:
                <strong>${object.date_planned.date()}</strong>.
            % elif object.expected_date:
                <strong>${object.expected_date.date()}</strong>.
            % endif
            <br/><br/>
            Could you please acknowledge the receipt of this order?
        % endif
    </p>
</div></field>
            <field name="report_template" ref="action_report_purchase_order"/>
            <field name="report_name">PO_${(object.name or '').replace('/','_')}</field>
            <field name="lang">${object.partner_id.lang}</field>
            <field name="auto_delete" eval="True"/>
        </record>

        <record id="email_template_edi_purchase_reminder" model="mail.template">
            <field name="name">Purchase Order: Vendor Reminder</field>
            <field name="model_id" ref="purchase.model_purchase_order"/>
            <field name="email_from">${(object.user_id.email_formatted or user.email_formatted) |safe}</field>
            <field name="subject">${object.company_id.name} Order (Ref ${object.name or 'n/a' })</field>
            <field name="partner_to">${object.partner_id.id}</field>
            <field name="body_html" type="html">
<div style="margin: 0px; padding: 0px;">
    <p style="margin: 0px; padding: 0px; font-size: 13px;">
        Dear ${object.partner_id.name}
        % if object.partner_id.parent_id:
            (${object.partner_id.parent_id.name})
        % endif
        <br/><br/>
        Here is a reminder that the delivery of the purchase order <strong>${object.name}</strong> is planned for 
        % if object.date_planned:
            <strong>${object.date_planned.date()}</strong>.
        % else:
            <strong>${object.expected_date.date()}</strong>.
        % endif
        Could you please confirm it will be on time?
    </p>
</div></field>
            <field name="report_template" ref="action_report_purchase_order"/>
            <field name="report_name">PO_${(object.name or '').replace('/','_')}</field>
            <field name="lang">${object.partner_id.lang}</field>
            <field name="auto_delete" eval="True"/>
        </record>

    <template id="mail_notification_confirm" inherit_id="mail.mail_notification_paynow" name="Purchase: Confirmation mail notification template">
        <xpath expr="//t[@t-set='access_name']" position="after">
            <t t-if="record._name == 'purchase.order'">
                <t t-if="record.state == 'purchase' and not record.env.context.get('is_reminder')">
                    <t t-set="access_name">Confirm</t>
                    <t t-set="access_url" t-value="record.get_confirm_url(confirm_type='reception')"/>
                </t>
            </t>
        </xpath>
        <xpath expr="//a[@t-att-href='access_url']" position="replace">
            <t t-if="record._name == 'purchase.order' and record.env.context.get('is_reminder')">
                <a t-att-href="record.get_confirm_url(confirm_type='reminder')"
                    style="margin-right: 10px; background-color: #875A7B; padding: 8px 16px 8px 16px; text-decoration: none; color: #fff; border-radius: 5px; font-size:13px;">
                    Yes
                </a>
                <a t-att-href="record.get_update_url()"
                    style="margin-left: 10px; background-color: #875A7B; padding: 8px 16px 8px 16px; text-decoration: none; color: #fff; border-radius: 5px; font-size:13px;">
                    No, Update Dates
                </a>
                <div>&amp;nbsp;</div>
                <div style="margin: 0px; padding: 0px; font-size:13px; text-align: left;">
                    If you have any questions, please do not hesitate to contact us.
                    <div>&amp;nbsp;</div>
                    Best regards,
                </div>
            </t>
            <t t-else="">
                <a t-att-href="access_url"
                    style="margin-left: 10px; background-color: #875A7B; padding: 8px 16px 8px 16px; text-decoration: none; color: #fff; border-radius: 5px; font-size:13px;">
                    <t t-esc="access_name"/>
                </a>
            </t>
        </xpath>
    </template>

    </data>
</odoo>