mrp/security/mrp_security.xml

<?xml version="1.0" encoding="utf-8"?>
<odoo>
<data noupdate="0">

    <record id="base.module_category_manufacturing_manufacturing" model="ir.module.category">
        <field name="description">Helps you manage your manufacturing processes and generate reports on those processes.</field>
        <field name="sequence">5</field>
    </record>

    <record id="group_mrp_user" model="res.groups">
        <field name="name">User</field>
        <field name="implied_ids" eval="[(4, ref('stock.group_stock_user'))]"/>
        <field name="category_id" ref="base.module_category_manufacturing_manufacturing"/>
    </record>
    <record id="group_mrp_manager" model="res.groups">
        <field name="name">Administrator</field>
        <field name="category_id" ref="base.module_category_manufacturing_manufacturing"/>
        <field name="implied_ids" eval="[(4, ref('group_mrp_user'))]"/>
        <field name="users" eval="[(4, ref('base.user_root')), (4, ref('base.user_admin'))]"/>
    </record>


    <record id="group_mrp_routings" model="res.groups">
        <field name="name">Manage Work Order Operations</field>
        <field name="category_id" ref="base.module_category_hidden"/>
    </record>

    <record id="group_mrp_byproducts" model="res.groups">
        <field name="name">Produce residual products</field>
        <field name="category_id" ref="base.module_category_hidden"/>
    </record>

    <record id="group_unlocked_by_default" model="res.groups">
        <field name="name">Unlocked by default</field>
        <field name="category_id" ref="base.module_category_hidden"/>
    </record>

    <record id="group_mrp_reception_report" model="res.groups">
        <field name="name">Use Reception Report with Manufacturing Orders</field>
        <field name="category_id" ref="base.module_category_hidden"/>
    </record>

    <record id="group_mrp_workorder_dependencies" model="res.groups">
        <field name="name">Use Operation Dependencies</field>
        <field name="category_id" ref="base.module_category_hidden"/>
    </record>

</data>
<data noupdate="1">
    <record id="base.default_user" model="res.users">
        <field name="groups_id" eval="[(4,ref('mrp.group_mrp_manager'))]"/>
    </record>
<!-- Multi -->
    <record model="ir.rule" id="mrp_production_rule">
        <field name="name">mrp_production multi-company</field>
        <field name="model_id" search="[('model','=','mrp.production')]" model="ir.model"/>
        <field name="domain_force">[('company_id', 'in', company_ids)]</field>
    </record>

    <record model="ir.rule" id="mrp_unbuild_rule">
        <field name="name">mrp_unbuild multi-company</field>
        <field name="model_id" search="[('model','=','mrp.unbuild')]" model="ir.model"/>
        <field name="domain_force">[('company_id', 'in', company_ids)]</field>
    </record>

    <record model="ir.rule" id="mrp_workcenter_rule">
        <field name="name">mrp_workcenter multi-company</field>
        <field name="model_id" search="[('model','=','mrp.workcenter')]" model="ir.model"/>
        <field name="domain_force">['|',('company_id', 'in', company_ids),('company_id','=',False)]</field>
    </record>

    <record model="ir.rule" id="mrp_workorder_rule">
        <field name="name">mrp_workorder multi-company</field>
        <field name="model_id" search="[('model','=','mrp.workorder')]" model="ir.model"/>
        <field name="domain_force">[('company_id', 'in', company_ids)]</field>
    </record>

    <record model="ir.rule" id="mrp_bom_rule">
        <field name="name">mrp_bom multi-company</field>
        <field name="model_id" search="[('model','=','mrp.bom')]" model="ir.model"/>
        <field name="domain_force">['|',('company_id', 'in', company_ids),('company_id','=',False)]</field>
    </record>

    <record model="ir.rule" id="mrp_bom_line_rule">
        <field name="name">mrp_bom_line multi-company</field>
        <field name="model_id" search="[('model','=','mrp.bom.line')]" model="ir.model"/>
        <field name="domain_force">['|',('company_id', 'in', company_ids),('company_id','=',False)]</field>
    </record>

    <record model="ir.rule" id="mrp_bom_byproduct_rule">
        <field name="name">mrp_bom_byproduct multi-company</field>
        <field name="model_id" search="[('model','=','mrp.bom.byproduct')]" model="ir.model"/>
        <field name="domain_force">['|',('company_id', 'in', company_ids),('company_id','=',False)]</field>
    </record>

    <record model="ir.rule" id="mrp_routing_workcenter_rule">
        <field name="name">mrp_routing_workcenter multi-company</field>
        <field name="model_id" search="[('model','=','mrp.routing.workcenter')]" model="ir.model"/>
        <field name="domain_force">['|',('company_id', 'in', company_ids),('company_id','=',False)]</field>
    </record>

    <record model="ir.rule" id="mrp_workcenter_productivity">
        <field name="name">mrp_workcenter_productivity multi-company</field>
        <field name="model_id" search="[('model','=','mrp.workcenter.productivity')]" model="ir.model"/>
        <field name="domain_force">[('company_id', 'in', company_ids)]</field>
    </record>

</data>
</odoo>