manufacture/mrp_multi_level/demo/mrp_bom_demo.xml

<?xml version="1.0" encoding="utf-8" ?>
<odoo noupdate="1">
    <!-- FP-1 -->
    <record id="mrp_bom_fp_1" model="mrp.bom">
        <field name="product_tmpl_id" ref="product_product_fp_1_product_template" />
        <field name="product_uom_id" ref="uom.product_uom_unit" />
        <field name="sequence">5</field>
    </record>
    <record id="mrp_bom_fp_1_line_pp_1" model="mrp.bom.line">
        <field name="product_id" ref="product_product_pp_1" />
        <field name="product_qty">2</field>
        <field name="product_uom_id" ref="uom.product_uom_unit" />
        <field name="sequence">5</field>
        <field name="bom_id" ref="mrp_bom_fp_1" />
    </record>
    <record id="mrp_bom_fp_1_line_pp_2" model="mrp.bom.line">
        <field name="product_id" ref="product_product_pp_2" />
        <field name="product_qty">3</field>
        <field name="product_uom_id" ref="uom.product_uom_unit" />
        <field name="sequence">5</field>
        <field name="bom_id" ref="mrp_bom_fp_1" />
    </record>
    <!-- FP-2 -->
    <record id="mrp_bom_fp_2" model="mrp.bom">
        <field name="product_tmpl_id" ref="product_product_fp_2_product_template" />
        <field name="product_uom_id" ref="uom.product_uom_unit" />
        <field name="sequence">5</field>
    </record>
    <record id="mrp_bom_fp_2_line_sf_1" model="mrp.bom.line">
        <field name="product_id" ref="product_product_sf_1" />
        <field name="product_qty">2</field>
        <field name="product_uom_id" ref="uom.product_uom_unit" />
        <field name="sequence">5</field>
        <field name="bom_id" ref="mrp_bom_fp_2" />
    </record>
    <record id="mrp_bom_fp_2_line_sf_2" model="mrp.bom.line">
        <field name="product_id" ref="product_product_sf_2" />
        <field name="product_qty">3</field>
        <field name="product_uom_id" ref="uom.product_uom_unit" />
        <field name="sequence">5</field>
        <field name="bom_id" ref="mrp_bom_fp_2" />
    </record>

    <!-- FP-3 -->
     <record id="mrp_bom_fp_3" model="mrp.bom">
        <field name="product_tmpl_id" ref="product_product_fp_3_product_template" />
        <field name="product_uom_id" ref="uom.product_uom_unit" />
        <field name="sequence">5</field>
    </record>
    <record id="mrp_bom_fp_3_line_sf_3" model="mrp.bom.line">
        <field name="product_id" ref="product_product_sf_3" />
        <field name="product_qty">2</field>
        <field name="product_uom_id" ref="uom.product_uom_unit" />
        <field name="sequence">5</field>
        <field name="bom_id" ref="mrp_bom_fp_3" />
    </record>
    <record id="mrp_bom_fp_3_line_pp_3" model="mrp.bom.line">
        <field name="product_id" ref="product_product_pp_3" />
        <field name="product_qty">2</field>
        <field name="product_uom_id" ref="uom.product_uom_unit" />
        <field name="sequence">5</field>
        <field name="bom_id" ref="mrp_bom_fp_3" />
    </record>

     <!-- Customizable Desk -->
     <record id="mrp_bom_product_4" model="mrp.bom">
        <field
            name="product_tmpl_id"
            ref="product.product_product_4_product_template"
        />
        <field name="product_uom_id" ref="uom.product_uom_unit" />
        <field name="sequence">5</field>
    </record>
    <record id="mrp_bom_product_4_line_av_11" model="mrp.bom.line">
        <field name="product_id" ref="product_product_av_11" />
        <field name="product_qty">1</field>
        <field name="product_uom_id" ref="uom.product_uom_unit" />
        <field name="sequence">1</field>
        <field name="bom_id" ref="mrp_bom_product_4" />
        <field
            name="bom_product_template_attribute_value_ids"
            eval="[(6, 0, [ref('product.product_attribute_value_1')])]"
        />
    </record>
    <record id="mrp_bom_product_4_line_av_12" model="mrp.bom.line">
        <field name="product_id" ref="product_product_av_12" />
        <field name="product_qty">1</field>
        <field name="product_uom_id" ref="uom.product_uom_unit" />
        <field name="sequence">2</field>
        <field name="bom_id" ref="mrp_bom_product_4" />
        <field
            name="bom_product_template_attribute_value_ids"
            eval="[(6, 0, [ref('product.product_attribute_value_2')])]"
        />
    </record>
    <record id="mrp_bom_product_4_line_av_21" model="mrp.bom.line">
        <field name="product_id" ref="product_product_av_21" />
        <field name="product_qty">1</field>
        <field name="product_uom_id" ref="uom.product_uom_unit" />
        <field name="sequence">3</field>
        <field name="bom_id" ref="mrp_bom_product_4" />
        <field
            name="bom_product_template_attribute_value_ids"
            eval="[(6, 0, [ref('product.product_attribute_value_3')])]"
        />
    </record>
    <record id="mrp_bom_product_4_line_av_22" model="mrp.bom.line">
        <field name="product_id" ref="product_product_av_22" />
        <field name="product_qty">1</field>
        <field name="product_uom_id" ref="uom.product_uom_unit" />
        <field name="sequence">4</field>
        <field name="bom_id" ref="mrp_bom_product_4" />
        <field
            name="bom_product_template_attribute_value_ids"
            eval="[(6, 0, [ref('product.product_attribute_value_4')])]"
        />
    </record>
    <!-- SF-1 -->
    <record id="mrp_bom_sf_1" model="mrp.bom">
        <field name="product_tmpl_id" ref="product_product_sf_1_product_template" />
        <field name="product_uom_id" ref="uom.product_uom_unit" />
        <field name="sequence">5</field>
    </record>
    <record id="mrp_bom_sf_1_line_pp_1" model="mrp.bom.line">
        <field name="product_id" ref="product_product_pp_1" />
        <field name="product_qty">3</field>
        <field name="product_uom_id" ref="uom.product_uom_unit" />
        <field name="sequence">5</field>
        <field name="bom_id" ref="mrp_bom_sf_1" />
    </record>
    <record id="mrp_bom_sf_1_line_pp_2" model="mrp.bom.line">
        <field name="product_id" ref="product_product_pp_2" />
        <field name="product_qty">2</field>
        <field name="product_uom_id" ref="uom.product_uom_unit" />
        <field name="sequence">5</field>
        <field name="bom_id" ref="mrp_bom_sf_1" />
    </record>
    <!-- SF-2 -->
    <record id="mrp_bom_sf_2" model="mrp.bom">
        <field name="product_tmpl_id" ref="product_product_sf_2_product_template" />
        <field name="product_uom_id" ref="uom.product_uom_unit" />
        <field name="sequence">5</field>
    </record>
    <record id="mrp_bom_sf_2_line_pp_2" model="mrp.bom.line">
        <field name="product_id" ref="product_product_pp_2" />
        <field name="product_qty">3</field>
        <field name="product_uom_id" ref="uom.product_uom_unit" />
        <field name="sequence">5</field>
        <field name="bom_id" ref="mrp_bom_sf_2" />
    </record>
    <!-- SF-3 -->
     <record id="mrp_bom_sf_3" model="mrp.bom">
        <field name="product_tmpl_id" ref="product_product_sf_3_product_template" />
        <field name="product_uom_id" ref="uom.product_uom_unit" />
         <field name="type">phantom</field>
        <field name="sequence">5</field>
    </record>
    <record id="mrp_bom_sf_3_line_pp_3" model="mrp.bom.line">
        <field name="product_id" ref="product_product_pp_3" />
        <field name="product_qty">1</field>
        <field name="product_uom_id" ref="uom.product_uom_unit" />
        <field name="sequence">5</field>
        <field name="bom_id" ref="mrp_bom_sf_3" />
    </record>
    <record id="mrp_bom_sf_3_line_pp_4" model="mrp.bom.line">
        <field name="product_id" ref="product_product_pp_4" />
        <field name="product_qty">3</field>
        <field name="product_uom_id" ref="uom.product_uom_unit" />
        <field name="sequence">5</field>
        <field name="bom_id" ref="mrp_bom_sf_3" />
    </record>
</odoo>