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 <t t-out="object.partner_id.name or ''">Brandon Freeman</t>
        <t t-if="object.partner_id.parent_id">
            (<t t-out="object.partner_id.parent_id.name or ''">Azure Interior</t>)
        </t>
        <br/><br/>
        Here is in attachment a request for quotation <strong t-out="object.name or ''">P00015</strong>
        <t t-if="object.partner_ref">
            with reference: <t t-out="object.partner_ref or ''">REF_XXX</t>
        </t>
        from <t t-out="object.company_id.name or ''">YourCompany</t>.
        <br/><br/>
        If you have any questions, please do not hesitate to contact us.
        <br/><br/>
        Best regards,
        <t t-if="not is_html_empty(object.user_id.signature)">
            <br />
            <t t-out="object.user_id.signature or ''">--<br/>Mitchell Admin</t>
        </t>
    </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 <t t-out="object.partner_id.name or ''">Brandon Freeman</t>
        <t t-if="object.partner_id.parent_id">
            (<t t-out="object.partner_id.parent_id.name or ''">Azure Interior</t>)
        </t>
        <br/><br/>
        Here is in attachment a purchase order <strong t-out="object.name or ''">P00015</strong>
        <t t-if="object.partner_ref">
            with reference: <t t-out="object.partner_ref or ''">REF_XXX</t>
        </t>
        amounting in <strong t-out="format_amount(object.amount_total, object.currency_id) or ''">$ 10.00</strong>
        from <t t-out="object.company_id.name or ''">YourCompany</t>. 
        <br/><br/>
        <t t-if="object.date_planned">
            The receipt is expected for <strong t-out="format_date(object.date_planned) or ''">05/05/2021</strong>.
            <br/><br/>
            Could you please acknowledge the receipt of this order?
        </t>
        <t t-if="not is_html_empty(object.user_id.signature)">
            <br />
            <t t-out="object.user_id.signature or ''">--<br/>Mitchell Admin</t>
        </t>
        <br/><br/>
    </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) }}</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 <t t-out="object.partner_id.name or ''">Brandon Freeman</t>
        <t t-if="object.partner_id.parent_id">
            (<t t-out="object.partner_id.parent_id.name or ''">Azure Interior</t>)
        </t>
        <br/><br/>
        Here is a reminder that the delivery of the purchase order <strong t-out="object.name or ''">P00015</strong>
        <t t-if="object.partner_ref">
            <strong>(<t t-out="object.partner_ref or ''">REF_XXX</t>)</strong>
        </t>
        is expected for 
        <t t-if="object.date_planned">
            <strong t-out="format_date(object.date_planned) or ''">05/05/2021</strong>.
        </t>
         <t t-else="">
            <strong>undefined</strong>.
        </t>
        Could you please confirm it will be delivered on time?
        <t t-if="not is_html_empty(object.user_id.signature)">
            <br />
            <t t-out="object.user_id.signature or ''">--<br/>Mitchell Admin</t>
        </t>
        <br/><br/>
    </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>

    </data>
</odoo>