diff --git a/wizard/calendar_create_project.py b/wizard/calendar_create_project.py
index bc57a024dbac62525b2812c9d7b145fec43fed25..46520efa2503b3b1ed1c042d1e58ec03531bfec6 100644
--- a/wizard/calendar_create_project.py
+++ b/wizard/calendar_create_project.py
@@ -17,8 +17,6 @@ class CalendarCreateProject(models.TransientModel):
     cooperative_form_id = fields.Many2one(
         "res.partner.cooperative.form",
         string="Cooperative form",
-        ondelete="restrict",
-        tracking=True,
     )
     city = fields.Char("Ville")
     zip = fields.Char("Code Postal")
@@ -31,13 +29,11 @@ class CalendarCreateProject(models.TransientModel):
         "res.partner.creation.origin",
         string="Origine création en coop",
         domain=[("parent_id", "=", False)],
-        ondelete="restrict",
     )
     creation_suborigin_id = fields.Many2one(
         "res.partner.creation.origin",
         string="Sous-Origine création en coop",
         domain=[("child_ids", "=", False)],
-        ondelete="restrict",
     )
     social_object = fields.Text("Objet Social")
     date_first_rdv = fields.Date("Date du 1er rdv")