diff --git a/_data/IO_items.yml b/_data/IO_items.yml
index 27b3ca4..8d2885b 100644
--- a/_data/IO_items.yml
+++ b/_data/IO_items.yml
@@ -65,7 +65,7 @@ col:
     type: "date"
 
   candidateBadges:
-    desc: "Total amont of badges acquired by the learner."
+    desc: "Total amount of badges acquired by the learner."
     type: "int"
 
   candidateCustomFieldGuid:
@@ -139,7 +139,7 @@ col:
     type: "string"
 
   candidatePoints:
-    desc: "Total amont of points acquired by the learner."
+    desc: "Total amount of points acquired by the learner."
     type: "int"
 
   candidatePresentation:
@@ -266,10 +266,12 @@ col:
   eventFacilitator:
     desc: "The full name of the facilitator of the event (back-office user)."
     type: "string"
+    deleted: true
 
   eventFacilitatorGuid:
     desc: "The GUID of the facilitator of the event (back-office user)."
     type: "string(40)"
+    deleted: true
 
   eventLocation:
     desc: "The location of the event."
@@ -306,6 +308,7 @@ col:
   eventTeacher:
     desc: "The teacher of the event."
     type: "string"
+    deleted: true
 
   eventTimeZone:
     desc: "The timezone of the event."
@@ -775,7 +778,7 @@ col:
 
   hasClassroomActivity:
     desc: "Return if the training session has a classroom activity."
-    type: "enum(Y, N)"    
+    type: "enum(Y, N)"
 
   modality:
     desc: "The modality of the associated training course."
@@ -934,6 +937,7 @@ col:
     desc: "Login of the teacher (back-office user) to assign as a teacher to the current intervention."
     type: "string"
     mandatory: "yes"
+    deleted: true
 
   templatedValue:
     desc: "A column to be used with the 'templates' option. This column requires an attribute 'templateId' which refers to the definition of one template."
@@ -1247,11 +1251,12 @@ param:
 
   onlyWithClassroomActivity:
     desc: "Only export tracking data related to trainings that have a classroom activity."
-    type: "yesNoElement"    
+    type: "yesNoElement"
 
   facilitatorGuids:
     desc: "Filter on the GUID of back-office facilitators. Can contain several values separated by commas."
     type: "string"
+    deleted: true
 
   failedConnections:
     desc: "Whether to include failed connections."