diff --git a/mrp_bom_widget_section_and_note_one2many/README.rst b/mrp_bom_widget_section_and_note_one2many/README.rst
index 49d2439fe..76ec8c158 100644
--- a/mrp_bom_widget_section_and_note_one2many/README.rst
+++ b/mrp_bom_widget_section_and_note_one2many/README.rst
@@ -42,6 +42,13 @@ Usage
 
 .. figure:: https://raw.githubusercontent.com/quentinDupont/manufacture/12.0_ADD_MRP_Widget_Sectionnote/mrp_bom_widget_section_and_note_one2many/static/description/mrp_bom_widget_add_section_and_note.gif
 
+Known issues / Roadmap
+======================
+
+mrp_bom_component_menu module (and maybe more) displays bom lines and it
+display lines of sections and note, with product_id empty. It should not display
+theses lines
+
 Bug Tracker
 ===========
 
diff --git a/mrp_bom_widget_section_and_note_one2many/__manifest__.py b/mrp_bom_widget_section_and_note_one2many/__manifest__.py
index f2b5c5928..44c826b35 100644
--- a/mrp_bom_widget_section_and_note_one2many/__manifest__.py
+++ b/mrp_bom_widget_section_and_note_one2many/__manifest__.py
@@ -7,7 +7,7 @@
     "name": "MRP Widget Section and Note in BoM",
     "summary": "Add section and note in Bills of Materials",
     "version": "12.0.1.1.0",
-    "category": "GRAP - Incubator",
+    "category": "Manufacturing/Manufacturing",
     "author": "GRAP,"
               "Odoo Community Association (OCA)",
     "website": "https://github.com/grap/grap-odoo-incubator",
diff --git a/mrp_bom_widget_section_and_note_one2many/models/mrp_bom.py b/mrp_bom_widget_section_and_note_one2many/models/mrp_bom.py
index 29e4eed82..c9f936cef 100644
--- a/mrp_bom_widget_section_and_note_one2many/models/mrp_bom.py
+++ b/mrp_bom_widget_section_and_note_one2many/models/mrp_bom.py
@@ -10,7 +10,7 @@ class MrpBom(models.Model):
     _inherit = "mrp.bom"
 
     # Split bom_line_ids in two fields handled thanks to domain
-    # Keeping original field bom_line_ids to keep all the native functionnalities
+    # Keep original field bom_line_ids to keep all the native functionnalities
     bom_line_ids = fields.One2many(domain=[("display_type", "=", False)])
 
     bom_line_with_sectionnote_ids = fields.One2many(
diff --git a/mrp_bom_widget_section_and_note_one2many/models/mrp_bom_line.py b/mrp_bom_widget_section_and_note_one2many/models/mrp_bom_line.py
index 81d187436..bba6370fe 100644
--- a/mrp_bom_widget_section_and_note_one2many/models/mrp_bom_line.py
+++ b/mrp_bom_widget_section_and_note_one2many/models/mrp_bom_line.py
@@ -9,9 +9,8 @@ from odoo import fields, models
 class MrpBomLine(models.Model):
     _inherit = "mrp.bom.line"
 
-    # To handle bom_line section & note, we have to make these fiels not required
+    # Returns mandatory for classic line thanks to _sql_constraints and view
     product_id = fields.Many2one(required=False)
-    product_qty = fields.Float(required=False)
 
     # New fields to handle section & note
     name = fields.Text(string="Description")
@@ -21,3 +20,14 @@ class MrpBomLine(models.Model):
         default=False,
         help="Technical field for UX purpose.",
     )
+
+    _sql_constraints = [
+        ('bom_required_fields',
+            "CHECK(display_type IS NOT NULL OR"
+            "(product_id IS NOT NULL AND product_qty IS NOT NULL))",
+            "Missing required fields on bom line."),
+        ('non_bom_null_fields',
+            "CHECK(display_type IS NULL OR"
+            "(product_id IS NULL AND product_qty = 1))",
+            "Forbidden values on note and section bom line"),
+    ]
diff --git a/mrp_bom_widget_section_and_note_one2many/readme/ROADMAP.rst b/mrp_bom_widget_section_and_note_one2many/readme/ROADMAP.rst
new file mode 100644
index 000000000..3fa137b0c
--- /dev/null
+++ b/mrp_bom_widget_section_and_note_one2many/readme/ROADMAP.rst
@@ -0,0 +1,3 @@
+mrp_bom_component_menu module (and maybe more) displays bom lines and it
+display lines of sections and note, with product_id empty. It should not display
+theses lines
diff --git a/mrp_bom_widget_section_and_note_one2many/static/description/index.html b/mrp_bom_widget_section_and_note_one2many/static/description/index.html
index 4260f9cfd..3037942dc 100644
--- a/mrp_bom_widget_section_and_note_one2many/static/description/index.html
+++ b/mrp_bom_widget_section_and_note_one2many/static/description/index.html
@@ -378,12 +378,13 @@ section_and_note_fields_backend.js in account module.</p>
 <div class="contents local topic" id="contents">
 <ul class="simple">
 <li><a class="reference internal" href="#usage" id="id1">Usage</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="#other-credits" id="id6">Other credits</a></li>
-<li><a class="reference internal" href="#maintainers" id="id7">Maintainers</a></li>
+<li><a class="reference internal" href="#known-issues-roadmap" id="id2">Known issues / Roadmap</a></li>
+<li><a class="reference internal" href="#bug-tracker" id="id3">Bug Tracker</a></li>
+<li><a class="reference internal" href="#credits" id="id4">Credits</a><ul>
+<li><a class="reference internal" href="#authors" id="id5">Authors</a></li>
+<li><a class="reference internal" href="#contributors" id="id6">Contributors</a></li>
+<li><a class="reference internal" href="#other-credits" id="id7">Other credits</a></li>
+<li><a class="reference internal" href="#maintainers" id="id8">Maintainers</a></li>
 </ul>
 </li>
 </ul>
@@ -400,8 +401,14 @@ section_and_note_fields_backend.js in account module.</p>
 <img alt="https://raw.githubusercontent.com/quentinDupont/manufacture/12.0_ADD_MRP_Widget_Sectionnote/mrp_bom_widget_section_and_note_one2many/static/description/mrp_bom_widget_add_section_and_note.gif" src="https://raw.githubusercontent.com/quentinDupont/manufacture/12.0_ADD_MRP_Widget_Sectionnote/mrp_bom_widget_section_and_note_one2many/static/description/mrp_bom_widget_add_section_and_note.gif" />
 </div>
 </div>
+<div class="section" id="known-issues-roadmap">
+<h1><a class="toc-backref" href="#id2">Known issues / Roadmap</a></h1>
+<p>mrp_bom_component_menu module (and maybe more) displays bom lines and it
+display lines of sections and note, with product_id empty. It should not display
+theses lines</p>
+</div>
 <div class="section" id="bug-tracker">
-<h1><a class="toc-backref" href="#id2">Bug Tracker</a></h1>
+<h1><a class="toc-backref" href="#id3">Bug Tracker</a></h1>
 <p>Bugs are tracked on <a class="reference external" href="https://github.com/quentinDupont/manufacture/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
@@ -409,28 +416,28 @@ 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="#id3">Credits</a></h1>
+<h1><a class="toc-backref" href="#id4">Credits</a></h1>
 <div class="section" id="authors">
-<h2><a class="toc-backref" href="#id4">Authors</a></h2>
+<h2><a class="toc-backref" href="#id5">Authors</a></h2>
 <ul class="simple">
 <li>GRAP</li>
 </ul>
 </div>
 <div class="section" id="contributors">
-<h2><a class="toc-backref" href="#id5">Contributors</a></h2>
+<h2><a class="toc-backref" href="#id6">Contributors</a></h2>
 <ul class="simple">
 <li>BADEP</li>
 <li>Quentin Dupont (<a class="reference external" href="mailto:quentin.dupont&#64;grap.coop">quentin.dupont&#64;grap.coop</a>)</li>
 </ul>
 </div>
 <div class="section" id="other-credits">
-<h2><a class="toc-backref" href="#id6">Other credits</a></h2>
+<h2><a class="toc-backref" href="#id7">Other credits</a></h2>
 <ul class="simple">
 <li>Code inspired by BADEP repo in v14 <a class="reference external" href="https://github.com/BADEP/addons/blob/14.0/mrp_bom_section">https://github.com/BADEP/addons/blob/14.0/mrp_bom_section</a></li>
 </ul>
 </div>
 <div class="section" id="maintainers">
-<h2><a class="toc-backref" href="#id7">Maintainers</a></h2>
+<h2><a class="toc-backref" href="#id8">Maintainers</a></h2>
 <p>This module is part of the <a class="reference external" href="https://github.com/quentinDupont/manufacture/tree/12.0_ADD_MRP_Widget_Sectionnote/mrp_bom_widget_section_and_note_one2many">quentinDupont/manufacture</a> project on GitHub.</p>
 <p>You are welcome to contribute.</p>
 </div>