diff --git a/app/scodoc/sco_edit_formation.py b/app/scodoc/sco_edit_formation.py
index 7ba9ad40cc..48caf2d5a9 100644
--- a/app/scodoc/sco_edit_formation.py
+++ b/app/scodoc/sco_edit_formation.py
@@ -365,6 +365,7 @@ def ue_move(ue_id, after=0, redirect=1):
     if len({o.numero for o in others}) != len(others):
         # il y a des numeros identiques !
         scu.objects_renumber(db, others)
+        ue.formation.invalidate_cached_sems()
     if len(others) > 1:
         idx = [u.id for u in others].index(ue.id)
         neigh = None  # object to swap with
diff --git a/app/scodoc/sco_edit_matiere.py b/app/scodoc/sco_edit_matiere.py
index 13ddb2a99e..fb40c2b0d5 100644
--- a/app/scodoc/sco_edit_matiere.py
+++ b/app/scodoc/sco_edit_matiere.py
@@ -88,13 +88,14 @@ def do_matiere_create(args):
     r = _matiereEditor.create(cnx, args)
 
     # news
-    F = sco_formations.formation_list(args={"formation_id": ue["formation_id"]})[0]
+    formation = Formation.query.get(ue["formation_id"])
     sco_news.add(
         typ=sco_news.NEWS_FORM,
         object=ue["formation_id"],
-        text="Modification de la formation %(acronyme)s" % F,
+        text="Modification de la formation {formation.acronyme}",
         max_frequency=3,
     )
+    formation.invalidate_cached_sems()
     return r
 
 
@@ -195,13 +196,14 @@ def do_matiere_delete(oid):
     _matiereEditor.delete(cnx, oid)
 
     # news
-    F = sco_formations.formation_list(args={"formation_id": ue["formation_id"]})[0]
+    formation = Formation.query.get(ue["formation_id"])
     sco_news.add(
         typ=sco_news.NEWS_FORM,
         object=ue["formation_id"],
-        text="Modification de la formation %(acronyme)s" % F,
+        text="Modification de la formation {formation.acronyme}",
         max_frequency=3,
     )
+    formation.invalidate_cached_sems()
 
 
 def matiere_delete(matiere_id=None):
diff --git a/app/scodoc/sco_edit_module.py b/app/scodoc/sco_edit_module.py
index f7b25989e3..41a25d090b 100644
--- a/app/scodoc/sco_edit_module.py
+++ b/app/scodoc/sco_edit_module.py
@@ -104,13 +104,14 @@ def do_module_create(args) -> int:
     r = _moduleEditor.create(cnx, args)
 
     # news
-    F = sco_formations.formation_list(args={"formation_id": args["formation_id"]})[0]
+    formation = Formation.query.get(args["formation_id"])
     sco_news.add(
         typ=sco_news.NEWS_FORM,
-        object=args["formation_id"],
-        text="Modification de la formation %(acronyme)s" % F,
+        object=formation.id,
+        text=f"Modification de la formation {formation.acronyme}",
         max_frequency=3,
     )
+    formation.invalidate_cached_sems()
     return r
 
 
@@ -394,13 +395,14 @@ def do_module_delete(oid):
     _moduleEditor.delete(cnx, oid)
 
     # news
-    F = sco_formations.formation_list(args={"formation_id": mod["formation_id"]})[0]
+    formation = module.formation
     sco_news.add(
         typ=sco_news.NEWS_FORM,
         object=mod["formation_id"],
-        text="Modification de la formation %(acronyme)s" % F,
+        text=f"Modification de la formation {formation.acronyme}",
         max_frequency=3,
     )
+    formation.invalidate_cached_sems()
 
 
 def module_delete(module_id=None):
diff --git a/app/scodoc/sco_edit_ue.py b/app/scodoc/sco_edit_ue.py
index 7675e45ec3..17cdc8c078 100644
--- a/app/scodoc/sco_edit_ue.py
+++ b/app/scodoc/sco_edit_ue.py
@@ -128,13 +128,14 @@ def do_ue_create(args):
     formation = Formation.query.get(args["formation_id"])
     formation.invalidate_module_coefs()
     # news
-    F = sco_formations.formation_list(args={"formation_id": args["formation_id"]})[0]
+    formation = Formation.query.get(args["formation_id"])
     sco_news.add(
         typ=sco_news.NEWS_FORM,
         object=args["formation_id"],
-        text="Modification de la formation %(acronyme)s" % F,
+        text="Modification de la formation {formation.acronyme}",
         max_frequency=3,
     )
+    formation.invalidate_cached_sems()
     return ue_id
 
 
@@ -361,7 +362,7 @@ def ue_edit(ue_id=None, create=False, formation_id=None, default_semestre_idx=No
             {
                 "size": 12,
                 "title": "Code UE",
-                "explanation": "code interne (optionnel). Toutes les UE partageant le même code (et le même code de formation) sont compatibles (compensation de semestres, capitalisation d'UE). Voir liste ci-dessous.",
+                "explanation": "code interne (non vide). Toutes les UE partageant le même code (et le même code de formation) sont compatibles (compensation de semestres, capitalisation d'UE). Voir liste ci-dessous.",
             },
         ),
         (
diff --git a/app/templates/pn/form_ues.html b/app/templates/pn/form_ues.html
index e56e198758..350d12d82e 100644
--- a/app/templates/pn/form_ues.html
+++ b/app/templates/pn/form_ues.html
@@ -35,6 +35,11 @@
                 <b>{{ue.acronyme}}</b> <a class="discretelink" href="{{
                     url_for('notes.ue_infos', scodoc_dept=g.scodoc_dept, ue_id=ue.id)}}"
                     >{{ue.titre}}</a>
+                    {% set virg = joiner(", ") %}
+                    <span class="ue_code">(
+                        {%- if ue.ue_code -%}{{ virg() }}code {{ue.ue_code}} {%- endif -%} 
+                        {{ virg() }}{{ue.ects or 0}} ECTS)
+                    </span>
                 </span>
 
                 {% if editable and not ue.is_locked() %}
diff --git a/app/templates/pn/ue_infos.html b/app/templates/pn/ue_infos.html
index b45c0b9bce..c5a0f77776 100644
--- a/app/templates/pn/ue_infos.html
+++ b/app/templates/pn/ue_infos.html
@@ -12,7 +12,7 @@
 <li>{{ue.acronyme}}
     <ul>
         <li>Semestre: {{ue.semestre_idx}}</li>
-        <li>Code: {{ue.code}}</li>
+        <li>Code: <tt>{{ue.ue_code}}</tt></li>
         <li>Type: {{ue.type}}</li>
         <li>Externe: {{ "oui" if ue.is_external else "non" }}</li>
         <li>Code Apogée: {{ue.code_apogee}}</li>