diff --git a/CHANGES.rst b/CHANGES.rst
index 8077b0e1..74e9dba2 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -6,6 +6,8 @@ Changelog
 
 - Remove ufficiostampa dependencies.
   [cekk]
+- data_inizio_incarico is no longer required in incarico
+  [sabrina-bongiovanni]
 
 
 6.3.10 (2025-08-20)
@@ -68,7 +70,6 @@ Changelog
   [lucabel]
 - Add File to CT Documento but hide it from volto add menu
   [lucabel]
-  
 
 
 6.3.3 (2025-02-20)
@@ -145,11 +146,11 @@ Changelog
 6.2.20 (2024-10-17)
 -------------------
 
-- Fix upgrade step 
+- Fix upgrade step
   [lucabel]
 - Avoid acquisition problem in *onModify* event handler: now try to reindex children only if context is folderish.
   [cekk]
-- Add sort_on sortable_title to event_location, uo_location, ufficio_responsabile vocabularies 
+- Add sort_on sortable_title to event_location, uo_location, ufficio_responsabile vocabularies
   [lucabel]
 
 6.2.19 (2024-09-23)
diff --git a/src/design/plone/contenttypes/interfaces/incarico.py b/src/design/plone/contenttypes/interfaces/incarico.py
index 3810196f..fb3c615f 100644
--- a/src/design/plone/contenttypes/interfaces/incarico.py
+++ b/src/design/plone/contenttypes/interfaces/incarico.py
@@ -93,7 +93,7 @@ class IIncarico(model.Schema, IDesignPloneContentType):
 
     data_inizio_incarico = schema.Date(
         title=_("data_inizio_incarico", default="Data inizio incarico"),
-        required=True,
+        required=False,
     )
 
     data_conclusione_incarico = schema.Date(