diff --git a/application/Espo/Modules/Crm/Resources/metadata/entityDefs/Call.json b/application/Espo/Modules/Crm/Resources/metadata/entityDefs/Call.json
index 48e0810063..62d7d4c2f3 100644
--- a/application/Espo/Modules/Crm/Resources/metadata/entityDefs/Call.json
+++ b/application/Espo/Modules/Crm/Resources/metadata/entityDefs/Call.json
@@ -77,6 +77,11 @@
             "layoutMassUpdateDisabled": true,
             "importDisabled": true,
             "exportDisabled": true,
+            "customizationDefaultDisabled": true,
+            "customizationRequiredDisabled": true,
+            "customizationIsSortedDisabled": true,
+            "customizationReadOnlyDisabled": true,
+            "customizationAuditedDisabled": true,
             "where": {
                 "=": {
                     "whereClause": {
diff --git a/application/Espo/Modules/Crm/Resources/metadata/entityDefs/Meeting.json b/application/Espo/Modules/Crm/Resources/metadata/entityDefs/Meeting.json
index 876903863a..9673340bd0 100644
--- a/application/Espo/Modules/Crm/Resources/metadata/entityDefs/Meeting.json
+++ b/application/Espo/Modules/Crm/Resources/metadata/entityDefs/Meeting.json
@@ -80,6 +80,11 @@
             "layoutMassUpdateDisabled": true,
             "importDisabled": true,
             "exportDisabled": true,
+            "customizationDefaultDisabled": true,
+            "customizationRequiredDisabled": true,
+            "customizationIsSortedDisabled": true,
+            "customizationReadOnlyDisabled": true,
+            "customizationAuditedDisabled": true,
             "where": {
                 "=": {
                     "whereClause": {