diff --git a/beesdoo_purchase/README.rst b/beesdoo_purchase/README.rst
index 9570923..35bb0bf 100644
--- a/beesdoo_purchase/README.rst
+++ b/beesdoo_purchase/README.rst
@@ -27,12 +27,22 @@ create_uid ORM field. His user's contact info is printed on
 purchases orders as 'Referent'.
 - A filter w.r.t. the mail sellers is placed on the products field of a
 purchase order.
+- Allow inverting the Purchase Order Reference on the invoice lines.
 
 **Table of contents**
 
 .. contents::
    :local:
 
+Configuration
+=============
+
+The setting *Invert Purchase Order Reference on invoice line* needs to be checked.
+This can be done in these following ways:
+
+* on the Access Rights (Technical Settings) of the user (Invert Purchase Order Reference on invoice line)
+* on the Invoicing Settings inside of the section `Invoices` (Allow inverting the Purchase Order Reference on the invoice lines)
+
 Bug Tracker
 ===========
 
diff --git a/beesdoo_purchase/__manifest__.py b/beesdoo_purchase/__manifest__.py
index 54c42a7..eaf8630 100644
--- a/beesdoo_purchase/__manifest__.py
+++ b/beesdoo_purchase/__manifest__.py
@@ -1,15 +1,21 @@
 {
     "name": "Bees Purchase",
     "summary": """
-        - Adds a 'Responsible' field to purchase orders,
+        - Adds a 'Responsible' field to purchase orders
         - A filter w.r.t. the mail sellers is placed on the products field of a
-        purchase order.
+        purchase order
+        - Allow inverting the Purchase Order Reference on the invoice lines
     """,
     "author": "Beescoop - Cellule IT, " "Coop IT Easy SCRLfs",
     "website": "https://github.com/beescoop/Obeesdoo",
     "category": "Purchase",
-    "version": "12.0.1.1.0",
+    "version": "12.0.1.2.0",
     "depends": ["base", "purchase", "beesdoo_product"],
-    "data": ["views/purchase_order.xml", "report/report_purchaseorder.xml"],
+    "data": [
+        "security/invoice_security.xml",
+        "views/purchase_order.xml",
+        "views/res_config_settings_view.xml",
+        "report/report_purchaseorder.xml",
+    ],
     "license": "AGPL-3",
 }
diff --git a/beesdoo_purchase/i18n/fr.po b/beesdoo_purchase/i18n/fr.po
new file mode 100644
index 0000000..e5eb8de
--- /dev/null
+++ b/beesdoo_purchase/i18n/fr.po
@@ -0,0 +1,66 @@
+# Translation of Odoo Server.
+# This file contains the translation of the following modules:
+#	* beesdoo_purchase
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Odoo Server 12.0\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2020-09-22 12:55+0000\n"
+"PO-Revision-Date: 2020-09-22 12:55+0000\n"
+"Last-Translator: <>\n"
+"Language-Team: \n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: \n"
+"Plural-Forms: \n"
+
+#. module: beesdoo_purchase
+#: model_terms:ir.ui.view,arch_db:beesdoo_purchase.report_purchaseorder_document
+msgid "<strong>Your Referent:</strong>"
+msgstr ""
+
+#. module: beesdoo_purchase
+#: model:ir.model.fields,field_description:beesdoo_purchase.field_res_config_settings__group_invert_po_ref_on_inv_line
+msgid "Allow inverting the Purchase Order Reference on the\n"
+"        invoice lines"
+msgstr "Permet d'inverser la référence du Bon De Commande sur\n"
+"        les lignes de facture"
+
+#. module: beesdoo_purchase
+#: model:ir.model.fields,help:beesdoo_purchase.field_res_config_settings__group_invert_po_ref_on_inv_line
+msgid "Allows you to invert Purchase Order Reference on the\n"
+"        invoice lines."
+msgstr "Permet d'inverser la référence du Bon De Commande sur\n"
+"        les lignes de facture."
+
+#. module: beesdoo_purchase
+#: model:ir.model,name:beesdoo_purchase.model_res_config_settings
+msgid "Config Settings"
+msgstr "Paramètres de configuration"
+
+#. module: beesdoo_purchase
+#: model:ir.model.fields,field_description:beesdoo_purchase.field_purchase_order__create_uid
+msgid "Create Uid"
+msgstr ""
+
+#. module: beesdoo_purchase
+#: model:res.groups,name:beesdoo_purchase.group_invert_po_ref_on_inv_line
+msgid "Invert Purchase Order Reference on invoice line"
+msgstr "Inverser la référence du Bon De Commande sur la ligne de facture"
+
+#. module: beesdoo_purchase
+#: model:ir.model,name:beesdoo_purchase.model_account_invoice
+msgid "Invoice"
+msgstr "Facture"
+
+#. module: beesdoo_purchase
+#: model:ir.model,name:beesdoo_purchase.model_purchase_order
+msgid "Purchase Order"
+msgstr "Commande fournisseur"
+
+#. module: beesdoo_purchase
+#: model:ir.model.fields,field_description:beesdoo_purchase.field_purchase_order__supervisor_id
+msgid "Responsible"
+msgstr "Responsable"
+
diff --git a/beesdoo_purchase/i18n/fr_BE.po b/beesdoo_purchase/i18n/fr_BE.po
index cd16936..e5eb8de 100644
--- a/beesdoo_purchase/i18n/fr_BE.po
+++ b/beesdoo_purchase/i18n/fr_BE.po
@@ -4,10 +4,10 @@
 #
 msgid ""
 msgstr ""
-"Project-Id-Version: Odoo Server 9.0c\n"
+"Project-Id-Version: Odoo Server 12.0\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2016-11-13 15:25+0000\n"
-"PO-Revision-Date: 2016-11-13 15:25+0000\n"
+"POT-Creation-Date: 2020-09-22 12:55+0000\n"
+"PO-Revision-Date: 2020-09-22 12:55+0000\n"
 "Last-Translator: <>\n"
 "Language-Team: \n"
 "MIME-Version: 1.0\n"
@@ -15,8 +15,52 @@ msgstr ""
 "Content-Transfer-Encoding: \n"
 "Plural-Forms: \n"
 
+#. module: beesdoo_purchase
+#: model_terms:ir.ui.view,arch_db:beesdoo_purchase.report_purchaseorder_document
+msgid "<strong>Your Referent:</strong>"
+msgstr ""
+
+#. module: beesdoo_purchase
+#: model:ir.model.fields,field_description:beesdoo_purchase.field_res_config_settings__group_invert_po_ref_on_inv_line
+msgid "Allow inverting the Purchase Order Reference on the\n"
+"        invoice lines"
+msgstr "Permet d'inverser la référence du Bon De Commande sur\n"
+"        les lignes de facture"
+
+#. module: beesdoo_purchase
+#: model:ir.model.fields,help:beesdoo_purchase.field_res_config_settings__group_invert_po_ref_on_inv_line
+msgid "Allows you to invert Purchase Order Reference on the\n"
+"        invoice lines."
+msgstr "Permet d'inverser la référence du Bon De Commande sur\n"
+"        les lignes de facture."
+
+#. module: beesdoo_purchase
+#: model:ir.model,name:beesdoo_purchase.model_res_config_settings
+msgid "Config Settings"
+msgstr "Paramètres de configuration"
+
+#. module: beesdoo_purchase
+#: model:ir.model.fields,field_description:beesdoo_purchase.field_purchase_order__create_uid
+msgid "Create Uid"
+msgstr ""
+
+#. module: beesdoo_purchase
+#: model:res.groups,name:beesdoo_purchase.group_invert_po_ref_on_inv_line
+msgid "Invert Purchase Order Reference on invoice line"
+msgstr "Inverser la référence du Bon De Commande sur la ligne de facture"
+
+#. module: beesdoo_purchase
+#: model:ir.model,name:beesdoo_purchase.model_account_invoice
+msgid "Invoice"
+msgstr "Facture"
+
 #. module: beesdoo_purchase
 #: model:ir.model,name:beesdoo_purchase.model_purchase_order
 msgid "Purchase Order"
 msgstr "Commande fournisseur"
 
+#. module: beesdoo_purchase
+#: model:ir.model.fields,field_description:beesdoo_purchase.field_purchase_order__supervisor_id
+msgid "Responsible"
+msgstr "Responsable"
+
diff --git a/beesdoo_purchase/i18n/fr_CH.po b/beesdoo_purchase/i18n/fr_CH.po
new file mode 100644
index 0000000..e5eb8de
--- /dev/null
+++ b/beesdoo_purchase/i18n/fr_CH.po
@@ -0,0 +1,66 @@
+# Translation of Odoo Server.
+# This file contains the translation of the following modules:
+#	* beesdoo_purchase
+#
+msgid ""
+msgstr ""
+"Project-Id-Version: Odoo Server 12.0\n"
+"Report-Msgid-Bugs-To: \n"
+"POT-Creation-Date: 2020-09-22 12:55+0000\n"
+"PO-Revision-Date: 2020-09-22 12:55+0000\n"
+"Last-Translator: <>\n"
+"Language-Team: \n"
+"MIME-Version: 1.0\n"
+"Content-Type: text/plain; charset=UTF-8\n"
+"Content-Transfer-Encoding: \n"
+"Plural-Forms: \n"
+
+#. module: beesdoo_purchase
+#: model_terms:ir.ui.view,arch_db:beesdoo_purchase.report_purchaseorder_document
+msgid "<strong>Your Referent:</strong>"
+msgstr ""
+
+#. module: beesdoo_purchase
+#: model:ir.model.fields,field_description:beesdoo_purchase.field_res_config_settings__group_invert_po_ref_on_inv_line
+msgid "Allow inverting the Purchase Order Reference on the\n"
+"        invoice lines"
+msgstr "Permet d'inverser la référence du Bon De Commande sur\n"
+"        les lignes de facture"
+
+#. module: beesdoo_purchase
+#: model:ir.model.fields,help:beesdoo_purchase.field_res_config_settings__group_invert_po_ref_on_inv_line
+msgid "Allows you to invert Purchase Order Reference on the\n"
+"        invoice lines."
+msgstr "Permet d'inverser la référence du Bon De Commande sur\n"
+"        les lignes de facture."
+
+#. module: beesdoo_purchase
+#: model:ir.model,name:beesdoo_purchase.model_res_config_settings
+msgid "Config Settings"
+msgstr "Paramètres de configuration"
+
+#. module: beesdoo_purchase
+#: model:ir.model.fields,field_description:beesdoo_purchase.field_purchase_order__create_uid
+msgid "Create Uid"
+msgstr ""
+
+#. module: beesdoo_purchase
+#: model:res.groups,name:beesdoo_purchase.group_invert_po_ref_on_inv_line
+msgid "Invert Purchase Order Reference on invoice line"
+msgstr "Inverser la référence du Bon De Commande sur la ligne de facture"
+
+#. module: beesdoo_purchase
+#: model:ir.model,name:beesdoo_purchase.model_account_invoice
+msgid "Invoice"
+msgstr "Facture"
+
+#. module: beesdoo_purchase
+#: model:ir.model,name:beesdoo_purchase.model_purchase_order
+msgid "Purchase Order"
+msgstr "Commande fournisseur"
+
+#. module: beesdoo_purchase
+#: model:ir.model.fields,field_description:beesdoo_purchase.field_purchase_order__supervisor_id
+msgid "Responsible"
+msgstr "Responsable"
+
diff --git a/beesdoo_purchase/models/__init__.py b/beesdoo_purchase/models/__init__.py
index 370f577..415c11a 100644
--- a/beesdoo_purchase/models/__init__.py
+++ b/beesdoo_purchase/models/__init__.py
@@ -1 +1,3 @@
+from . import account_invoice
 from . import purchase
+from . import res_config
diff --git a/beesdoo_purchase/models/account_invoice.py b/beesdoo_purchase/models/account_invoice.py
new file mode 100644
index 0000000..2bdf44c
--- /dev/null
+++ b/beesdoo_purchase/models/account_invoice.py
@@ -0,0 +1,16 @@
+from odoo import api, fields, models, _
+
+
+class AccountInvoice(models.Model):
+    _inherit = "account.invoice"
+
+    def _prepare_invoice_line_from_po_line(self, line):
+        """ Override parent's method to invert Purchase Order Reference on invoice line"""
+        invoice_line = super(
+            AccountInvoice, self
+        )._prepare_invoice_line_from_po_line(line)
+        if self.user_has_groups(
+            "beesdoo_purchase." "group_invert_po_ref_on_inv_line"
+        ):
+            invoice_line["name"] = line.name + ": " + line.order_id.name
+        return invoice_line
diff --git a/beesdoo_purchase/models/res_config.py b/beesdoo_purchase/models/res_config.py
new file mode 100644
index 0000000..7f36d18
--- /dev/null
+++ b/beesdoo_purchase/models/res_config.py
@@ -0,0 +1,13 @@
+from odoo import fields, models
+
+
+class ResConfigSettings(models.TransientModel):
+    _inherit = "res.config.settings"
+
+    group_invert_po_ref_on_inv_line = fields.Boolean(
+        """Allow inverting the Purchase Order Reference on the
+        invoice lines""",
+        implied_group="beesdoo_purchase." "group_invert_po_ref_on_inv_line",
+        help="""Allows you to invert Purchase Order Reference on the
+        invoice lines.""",
+    )
diff --git a/beesdoo_purchase/readme/CONFIGURE.rst b/beesdoo_purchase/readme/CONFIGURE.rst
new file mode 100644
index 0000000..fcce31a
--- /dev/null
+++ b/beesdoo_purchase/readme/CONFIGURE.rst
@@ -0,0 +1,5 @@
+The setting *Invert Purchase Order Reference on invoice line* needs to be checked.
+This can be done in these following ways:
+
+* on the Access Rights (Technical Settings) of the user (Invert Purchase Order Reference on invoice line)
+* on the Invoicing Settings inside of the section `Invoices` (Allow inverting the Purchase Order Reference on the invoice lines)
diff --git a/beesdoo_purchase/readme/DESCRIPTION.rst b/beesdoo_purchase/readme/DESCRIPTION.rst
index 6d9e566..8accc85 100644
--- a/beesdoo_purchase/readme/DESCRIPTION.rst
+++ b/beesdoo_purchase/readme/DESCRIPTION.rst
@@ -6,3 +6,4 @@ create_uid ORM field. His user's contact info is printed on
 purchases orders as 'Referent'.
 - A filter w.r.t. the mail sellers is placed on the products field of a
 purchase order.
+- Allow inverting the Purchase Order Reference on the invoice lines.
diff --git a/beesdoo_purchase/security/invoice_security.xml b/beesdoo_purchase/security/invoice_security.xml
new file mode 100644
index 0000000..344d146
--- /dev/null
+++ b/beesdoo_purchase/security/invoice_security.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<odoo>
+
+    <record id="group_invert_po_ref_on_inv_line" model="res.groups">
+        <field name="name">Invert Purchase Order Reference on invoice line</field>
+        <field name="category_id" ref="base.module_category_hidden"/>
+    </record>
+
+</odoo>
diff --git a/beesdoo_purchase/static/description/index.html b/beesdoo_purchase/static/description/index.html
index 5572fa8..c62db0e 100644
--- a/beesdoo_purchase/static/description/index.html
+++ b/beesdoo_purchase/static/description/index.html
@@ -375,21 +375,32 @@ the creator in the order’s mail messages followers list, and in the
 create_uid ORM field. His user’s contact info is printed on
 purchases orders as ‘Referent’.
 - A filter w.r.t. the mail sellers is placed on the products field of a
-purchase order.</p>
+purchase order.
+- Allow inverting the Purchase Order Reference on the invoice lines.</p>
 <p><strong>Table of contents</strong></p>
 <div class="contents local topic" id="contents">
 <ul class="simple">
-<li><a class="reference internal" href="#bug-tracker" id="id1">Bug Tracker</a></li>
-<li><a class="reference internal" href="#credits" id="id2">Credits</a><ul>
-<li><a class="reference internal" href="#authors" id="id3">Authors</a></li>
-<li><a class="reference internal" href="#contributors" id="id4">Contributors</a></li>
-<li><a class="reference internal" href="#maintainers" id="id5">Maintainers</a></li>
+<li><a class="reference internal" href="#configuration" id="id1">Configuration</a></li>
+<li><a class="reference internal" href="#bug-tracker" id="id2">Bug Tracker</a></li>
+<li><a class="reference internal" href="#credits" id="id3">Credits</a><ul>
+<li><a class="reference internal" href="#authors" id="id4">Authors</a></li>
+<li><a class="reference internal" href="#contributors" id="id5">Contributors</a></li>
+<li><a class="reference internal" href="#maintainers" id="id6">Maintainers</a></li>
 </ul>
 </li>
 </ul>
 </div>
+<div class="section" id="configuration">
+<h1><a class="toc-backref" href="#id1">Configuration</a></h1>
+<p>The setting <em>Invert Purchase Order Reference on invoice line</em> needs to be checked.
+This can be done in these following ways:</p>
+<ul class="simple">
+<li>on the Access Rights (Technical Settings) of the user (Invert Purchase Order Reference on invoice line)</li>
+<li>on the Invoicing Settings inside of the section <cite>Invoices</cite> (Allow inverting the Purchase Order Reference on the invoice lines)</li>
+</ul>
+</div>
 <div class="section" id="bug-tracker">
-<h1><a class="toc-backref" href="#id1">Bug Tracker</a></h1>
+<h1><a class="toc-backref" href="#id2">Bug Tracker</a></h1>
 <p>Bugs are tracked on <a class="reference external" href="https://github.com/beescoop/obeesdoo/issues">GitHub Issues</a>.
 In case of trouble, please check there if your issue has already been reported.
 If you spotted it first, help us smashing it by providing a detailed and welcomed
@@ -397,23 +408,23 @@ If you spotted it first, help us smashing it by providing a detailed and welcome
 <p>Do not contact contributors directly about support or help with technical issues.</p>
 </div>
 <div class="section" id="credits">
-<h1><a class="toc-backref" href="#id2">Credits</a></h1>
+<h1><a class="toc-backref" href="#id3">Credits</a></h1>
 <div class="section" id="authors">
-<h2><a class="toc-backref" href="#id3">Authors</a></h2>
+<h2><a class="toc-backref" href="#id4">Authors</a></h2>
 <ul class="simple">
 <li>Beescoop - Cellule IT</li>
 <li>Coop IT Easy SCRLfs</li>
 </ul>
 </div>
 <div class="section" id="contributors">
-<h2><a class="toc-backref" href="#id4">Contributors</a></h2>
+<h2><a class="toc-backref" href="#id5">Contributors</a></h2>
 <ul class="simple">
 <li>Beescoop - Cellule IT</li>
 <li>Coop IT Easy SCRLfs</li>
 </ul>
 </div>
 <div class="section" id="maintainers">
-<h2><a class="toc-backref" href="#id5">Maintainers</a></h2>
+<h2><a class="toc-backref" href="#id6">Maintainers</a></h2>
 <p>This module is part of the <a class="reference external" href="https://github.com/beescoop/obeesdoo/tree/12.0/beesdoo_purchase">beescoop/obeesdoo</a> project on GitHub.</p>
 <p>You are welcome to contribute.</p>
 </div>
diff --git a/beesdoo_purchase/views/res_config_settings_view.xml b/beesdoo_purchase/views/res_config_settings_view.xml
new file mode 100644
index 0000000..a2d4731
--- /dev/null
+++ b/beesdoo_purchase/views/res_config_settings_view.xml
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+
+<odoo>
+    <record id="res_config_settings_view_form" model="ir.ui.view">
+        <field name="name">res invoice line description settings</field>
+        <field name="model">res.config.settings</field>
+        <field name="inherit_id" ref="account.res_config_settings_view_form"/>
+        <field name="arch" type="xml">
+            <xpath
+                    expr="//div[@id='invoicing_settings']"
+                    position="inside">
+                    <div class="col-xs-12 col-md-6 o_setting_box">
+                        <div class="o_setting_left_pane">
+                            <field name="group_invert_po_ref_on_inv_line"/>
+                        </div>
+                        <div class="o_setting_right_pane">
+                            <label for="group_invert_po_ref_on_inv_line"/>
+                        </div>
+                    </div>
+            </xpath>
+        </field>
+    </record>
+</odoo>