diff --git a/app/api/partitions.py b/app/api/partitions.py
index f46598b26..9af1fb303 100644
--- a/app/api/partitions.py
+++ b/app/api/partitions.py
@@ -359,6 +359,8 @@ def partition_create(formsemestre_id: int):
     partition_name = data.get("partition_name")
     if partition_name is None:
         return error_response(404, "missing partition_name or invalid data format")
+    if partition_name == scu.PARTITION_PARCOURS:
+        return error_response(404, f"invalid partition_name {scu.PARTITION_PARCOURS}")
     if not Partition.check_name(formsemestre, partition_name):
         return error_response(404, "invalid partition_name")
     numero = data.get("numero", 0)
@@ -482,7 +484,10 @@ def partition_edit(partition_id: int):
     data = request.get_json(force=True)  # may raise 400 Bad Request
     modified = False
     partition_name = data.get("partition_name")
+    #
     if partition_name is not None and partition_name != partition.partition_name:
+        if partition.is_parcours():
+            return error_response(404, f"can't rename {scu.PARTITION_PARCOURS}")
         if not Partition.check_name(
             partition.formsemestre, partition_name, existing=True
         ):
@@ -502,6 +507,8 @@ def partition_edit(partition_id: int):
         if value is not None and value != getattr(partition, boolean_field):
             if not isinstance(value, bool):
                 return error_response(404, f"invalid type for {boolean_field}")
+            if boolean_field == "groups_editable" and partition.is_parcours():
+                return error_response(404, f"can't change {scu.PARTITION_PARCOURS}")
             setattr(partition, boolean_field, value)
             modified = True
 
diff --git a/app/models/formsemestre.py b/app/models/formsemestre.py
index a5514200e..316811c4f 100644
--- a/app/models/formsemestre.py
+++ b/app/models/formsemestre.py
@@ -576,6 +576,7 @@ class FormSemestre(db.Model):
                 formsemestre_id=self.id,
                 partition_name=scu.PARTITION_PARCOURS,
                 numero=-1,
+                groups_editable=False,
             )
             db.session.add(partition)
             db.session.flush()  # pour avoir un id
diff --git a/app/models/groups.py b/app/models/groups.py
index 8b890a6ac..1a5dc257d 100644
--- a/app/models/groups.py
+++ b/app/models/groups.py
@@ -38,7 +38,7 @@ class Partition(db.Model):
     show_in_lists = db.Column(
         db.Boolean(), nullable=False, default=True, server_default="true"
     )
-    # Editable ? (faux pour les groupes de parcours)
+    # Editable (créer/renommer groupes) ? (faux pour les groupes de parcours)
     groups_editable = db.Column(
         db.Boolean(), nullable=False, default=True, server_default="true"
     )
@@ -80,7 +80,7 @@ class Partition(db.Model):
         return True
 
     def is_parcours(self) -> bool:
-        "Vrai s'il s'agit de la partitoon de parcours"
+        "Vrai s'il s'agit de la partition de parcours"
         return self.partition_name == scu.PARTITION_PARCOURS
 
     def to_dict(self, with_groups=False) -> dict:
diff --git a/app/scodoc/sco_groups.py b/app/scodoc/sco_groups.py
index 2a9b4dac2..1f759e2aa 100644
--- a/app/scodoc/sco_groups.py
+++ b/app/scodoc/sco_groups.py
@@ -760,7 +760,7 @@ def setGroups(
         return response
 
     partition = get_partition(partition_id)
-    if not partition["groups_editable"]:
+    if not partition["groups_editable"] and (groupsToCreate or groupsToDelete):
         msg = "setGroups: partition non editable"
         log(msg)
         return xml_error(msg, code=403)
@@ -998,51 +998,54 @@ def edit_partition_form(formsemestre_id=None):
     for p in partitions:
         if p["partition_name"] is not None:
             H.append(
-                '<tr><td class="epnav"><a class="stdlink" href="partition_delete?partition_id=%s">%s</a>&nbsp;</td><td class="epnav">'
-                % (p["partition_id"], suppricon)
+                f"""<tr><td class="epnav"><a class="stdlink" 
+                href="{url_for("scolar.partition_delete", 
+                scodoc_dept=g.scodoc_dept, partition_id=p["partition_id"])
+                }">{suppricon}</a>&nbsp;</td><td class="epnav">"""
             )
             if i != 0:
                 H.append(
-                    '<a href="partition_move?partition_id=%s&after=0">%s</a>'
-                    % (p["partition_id"], arrow_up)
+                    f"""<a href="{url_for("scolar.partition_move",
+                    scodoc_dept=g.scodoc_dept, partition_id=p["partition_id"], after=0)
+                    }">{arrow_up}</a>"""
                 )
             H.append('</td><td class="epnav">')
             if i < len(partitions) - 2:
                 H.append(
-                    '<a href="partition_move?partition_id=%s&after=1">%s</a>'
-                    % (p["partition_id"], arrow_down)
+                    f"""<a href="{url_for("scolar.partition_move",
+                    scodoc_dept=g.scodoc_dept, partition_id=p["partition_id"], after=1)
+                    }">{arrow_down}</a>"""
                 )
             i += 1
-            H.append("</td>")
-            pname = p["partition_name"] or ""
-            H.append("<td>%s</td>" % pname)
-            H.append("<td>")
+            H.append(
+                f"""</td>
+            <td>{p["partition_name"] or ""}</td>
+            <td>"""
+            )
             lg = [
-                "%s (%d)"
-                % (
-                    group["group_name"],
-                    len(get_group_members(group["group_id"])),
-                )
+                f"""{group["group_name"]} ({len(get_group_members(group["group_id"]))})"""
                 for group in get_partition_groups(p)
             ]
             H.append(", ".join(lg))
             H.append("""</td><td>""")
+            H.append(
+                f"""<a class="stdlink" href="{
+                    url_for("scolar.affect_groups",
+                    scodoc_dept=g.scodoc_dept,
+                    partition_id=p["partition_id"])
+                }">répartir</a></td>
+                """
+            )
+            H.append("""</td>""")
             if p["groups_editable"]:
                 H.append(
-                    f"""<a class="stdlink" href="{
-                        url_for("scolar.affect_groups",
-                        scodoc_dept=g.scodoc_dept,
-                        partition_id=p["partition_id"])
-                    }">répartir</a></td>
-                    """
+                    f"""<td><a class="stdlink" href="{
+                    url_for("scolar.partition_rename",
+                    scodoc_dept=g.scodoc_dept, partition_id=p["partition_id"])
+                    }">renommer</a></td>"""
                 )
             else:
-                H.append("""non éditable""")
-            H.append("""</td>""")
-            H.append(
-                '<td><a class="stdlink" href="partition_rename?partition_id=%s">renommer</a></td>'
-                % p["partition_id"]
-            )
+                H.append("""<td>non éditable</td>""")
             # classement:
             H.append('<td width="250px">')
             if p["bul_show_rank"]:
diff --git a/app/templates/scolar/affect_groups.html b/app/templates/scolar/affect_groups.html
index 323a42e52..1f1dd908b 100644
--- a/app/templates/scolar/affect_groups.html
+++ b/app/templates/scolar/affect_groups.html
@@ -16,8 +16,10 @@ href="{{ url_for('scolar.groups_auto_repartition', scodoc_dept=g.scodoc_dept, pa
 <div id="savedinfo"></div>
 <form name="formGroup" id="formGroup" onSubmit="return false;">
     <input type="hidden" name="partition_id" value="{{ partition.id }}"/>
-    <input name="groupName" size="6"/>
-    <input type="button" onClick="createGroup();" value="Créer groupe"/>
+    {% if partition.groups_editable %}
+        <input name="groupName" size="6"/>
+        <input type="button" onClick="createGroup();" value="Créer groupe"/>
+    {% endif %}
     &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
     <input type="button" onClick="submitGroups( target='gmsg' );" value="Enregistrer ces groupes" />
     &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;