sale_view.xml

<?xml version="1.0" encoding="utf-8" ?>
<odoo>
    <record model="ir.ui.view" id="view_sale_invoice_plan_tree">
        <field name="name">view.sale.invoice.plan.tree</field>
        <field name="model">sale.invoice.plan</field>
        <field name="arch" type="xml">
            <tree editable="bottom">
                <field name="no_edit" column_invisible="1" />
                <field name="analytic_account_id" />
                <field name="installment" readonly="no_edit" />
                <field name="plan_date" readonly="no_edit" />
                <field name="invoice_type" readonly="no_edit" />
                <field name="percent" optional="show" readonly="no_edit" />
                <field name="amount" optional="show" readonly="no_edit" />
                <field name="amount_invoiced" optional="hide" sum="Amount" />
                <field name="to_invoice" />
                <field name="invoiced" />
                <field
                    name="invoice_move_ids"
                    optional="hide"
                    widget="many2many_tags"
                    readonly="1"
                />
                <field name="last" column_invisible="1" />
            </tree>
        </field>
    </record>
    <record model="ir.ui.view" id="view_sale_invoice_plan_form">
        <field name="name">view.sale.invoice.plan.form</field>
        <field name="model">sale.invoice.plan</field>
        <field name="arch" type="xml">
            <form>
                <group>
                    <group>
                        <field name="installment" />
                        <field name="plan_date" />
                        <field name="to_invoice" />
                    </group>
                    <group>
                        <field name="invoice_type" />
                        <field name="percent" />
                        <field name="amount" />
                        <field name="invoiced" />
                        <field
                            name="invoice_move_ids"
                            widget="many2many_tags"
                            readonly="1"
                        />
                    </group>
                </group>
                <separator string="Related Invoices" invisible="not invoice_move_ids" />
                <field name="invoice_move_ids" widget="many2many_tags" readonly="1" />
            </form>
        </field>
    </record>
    <record id="view_order_form_invoice_plan" model="ir.ui.view">
        <field name="name">view.order.form.invoice.plan</field>
        <field name="model">sale.order</field>
        <field name="inherit_id" ref="sale.view_order_form" />
        <field name="arch" type="xml">
            <xpath expr='/form/sheet/notebook' position="before">
                <div readonly="invoice_count > 0">
                    <field name="use_invoice_plan" />
                    <label for="use_invoice_plan" />
                </div>
            </xpath>
            <xpath expr="//button[@name='payment_action_capture']" position="before">
                <field name="invoice_plan_process" invisible="1" />
                <button
                    name="%(action_view_sale_make_planned_invoice)d"
                    string="Create Invoice by Plan"
                    type="action"
                    class="btn-primary"
                    invisible="not invoice_plan_process"
                />
            </xpath>
            <xpath
                expr="//button[@name='%(sale.action_view_sale_advance_payment_inv)d'][1]"
                position="attributes"
            >
                <attribute
                    name="invisible"
                >invoice_plan_process or invoice_status != 'to invoice'</attribute>
            </xpath>
            <xpath
                expr="//button[@name='%(sale.action_view_sale_advance_payment_inv)d'][2]"
                position="attributes"
            >
                <attribute
                    name="invisible"
                >invoice_plan_process or invoice_status != 'no' or state != 'sale'</attribute>
            </xpath>
            <xpath expr="/form/sheet/notebook/page" position="after">
                <page string="Invoice Plan" invisible="not use_invoice_plan">
                    <button
                        name="%(action_sale_create_invoice_plan)d"
                        string="⇒ Create Invoice Plan"
                        type="action"
                        class="oe_link"
                        invisible="invoice_plan_ids or invoice_count > 0"
                    />
                    <button
                        name="remove_invoice_plan"
                        string="⇒ Remove Invoice Plan"
                        type="object"
                        class="oe_link"
                        invisible="not invoice_plan_ids or invoice_count > 0"
                        confirm="Are you sure to remove this invoice plan?"
                    />
                    <field
                        name="invoice_plan_ids"
                        context="{'tree_view_ref': 'sale_invoice_plan.view_sale_invoice_plan_tree'}"
                        invisible="not invoice_plan_ids"
                    />
                    <group class="oe_subtotal_footer oe_right">
                        <field name="invoice_plan_total_percent" />
                        <field name="invoice_plan_total_amount" />
                    </group>
                </page>
            </xpath>
        </field>
    </record>
    <record id="view_order_tree_invoice_plan" model="ir.ui.view">
        <field name="name">view.order.tree.invoice.plan</field>
        <field name="model">sale.order</field>
        <field name="inherit_id" ref="sale.view_order_tree" />
        <field name="arch" type="xml">
            <xpath expr="//field[@name='invoice_status']" position="after">
                <field
                    name="invoice_plan_pending"
                    optional="hide"
                    string="Pend."
                    decoration-bf="invoice_plan_pending &gt; 0"
                />
            </xpath>
        </field>
    </record>
    <record id="view_order_filter_invoice_plan" model="ir.ui.view">
        <field name="name">view.order.search.invoice.plan</field>
        <field name="model">sale.order</field>
        <field name="inherit_id" ref="sale.view_sales_order_filter" />
        <field name="arch" type="xml">
            <xpath expr="//field[@name='order_line']" position="after">
                <field name="invoice_plan_pending" string="Pending plans" />
            </xpath>
            <xpath expr="//filter[@name='activities_upcoming_all']" position="after">
                <separator />
                <filter
                    name="invoice_plan_pending"
                    string="With pending plans"
                    domain="[('invoice_plan_pending','&gt;',0)]"
                />
            </xpath>
        </field>
    </record>
    <!-- Invoice Plan Lines -->
    <record id="view_sale_invoice_plan_filter" model="ir.ui.view">
        <field name="name">view.sale.invoice.plan.filter</field>
        <field name="model">sale.invoice.plan</field>
        <field name="arch" type="xml">
            <search string="Search Sales Invoice Plan Lines">
                <field name="partner_id" />
                <field name="sale_id" />
                <field name="analytic_account_id" />
                <field name="installment" />
                <separator />
                <filter
                    string="Quotations"
                    name="draft"
                    domain="[('state', 'in', ('draft', 'sent'))]"
                />
                <filter
                    string="Sales Orders"
                    name="sales"
                    domain="[('state', 'in', ('sale','done'))]"
                />
                <filter
                    string="Not Invoiced"
                    name="not_invoiced"
                    domain="[('state', 'in', ('sale','done')), ('invoiced', '=', False)]"
                />
                <filter
                    string="Not Invoiced &amp; Due"
                    name="over_plan_date"
                    domain="[
                        ('state', 'in', ('sale','done')),
                        ('invoiced', '=', False),
                        ('plan_date', '&lt;=', context_today().strftime('%Y-%m-%d'))
                    ]"
                />
                <group expand="0" string="Group By">
                    <filter
                        string="Customer"
                        name="groupby_customer"
                        domain="[]"
                        context="{'group_by':'partner_id'}"
                    />
                    <filter
                        string="Sales Order"
                        name="groupby_sale"
                        domain="[]"
                        context="{'group_by':'sale_id'}"
                    />
                    <filter
                        string="Analytic Account"
                        name="groupby_analytic_account_id"
                        domain="[]"
                        context="{'group_by':'analytic_account_id'}"
                    />
                    <filter
                        string="Installment"
                        name="groupby_install"
                        domain="[]"
                        context="{'group_by':'installment'}"
                    />
                    <filter
                        string="Status"
                        name="groupby_state"
                        domain="[]"
                        context="{'group_by':'state'}"
                    />
                </group>
            </search>
        </field>
    </record>
    <record id="view_sale_invoice_plan_tree_readonly" model="ir.ui.view">
        <field name="name">view.sale.invoice.plan.tree</field>
        <field name="model">sale.invoice.plan</field>
        <field name="arch" type="xml">
            <tree edit="0" create="0" delete="0">
                <field name="sale_id" />
                <field name="analytic_account_id" />
                <field name="installment" />
                <field name="plan_date" />
                <field name="invoice_type" />
                <field name="percent" optional="show" sum="Percent" />
                <field name="amount" optional="show" sum="Amount" />
                <field name="amount_invoiced" optional="show" sum="Amount" />
                <field name="to_invoice" />
                <field name="invoiced" />
                <field name="invoice_move_ids" widget="many2many_tags" />
            </tree>
        </field>
    </record>
    <record id="action_sale_invoice_plan" model="ir.actions.act_window">
        <field name="name">Sales Invoice Plan</field>
        <field name="type">ir.actions.act_window</field>
        <field name="res_model">sale.invoice.plan</field>
        <field name="view_mode">tree</field>
        <field name="view_id" ref="view_sale_invoice_plan_tree_readonly" />
        <field name="search_view_id" ref="view_sale_invoice_plan_filter" />
        <field
            name="context"
        >{'search_default_sales': 1, 'search_default_groupby_sale': 1}</field>
        <field name="help" type="html">
            <p class="o_view_nocontent_smiling_face">
            View sales invoice plan lines
          </p>
            <p>
            This view show all available invoice plan line for reporting purposes
          </p>
        </field>
    </record>
    <menuitem
        action="action_sale_invoice_plan"
        id="menu_sale_invoice_plan"
        parent="sale.sale_order_menu"
        groups="sales_team.group_sale_salesman"
        sequence="25"
    />
</odoo>