diff --git a/src/components/Breadcrumb/index.d.ts b/src/components/Breadcrumb/index.d.ts
index 26ba4be36..7038e7908 100644
--- a/src/components/Breadcrumb/index.d.ts
+++ b/src/components/Breadcrumb/index.d.ts
@@ -14,7 +14,7 @@ export interface BreadcrumbProps {
   rootNode?: BreadcrumbRootNode;
   divider?: React.ReactNode;
   nodes?: BreadcrumbNodes[];
-  onClick?: (...args: any[]) => any;
+  onClick: (...args: any[]) => any;
   disabled?: boolean;
 }
 
diff --git a/src/components/ConfirmModal/index.d.ts b/src/components/ConfirmModal/index.d.ts
index 4dabec9bc..9de0e17df 100644
--- a/src/components/ConfirmModal/index.d.ts
+++ b/src/components/ConfirmModal/index.d.ts
@@ -12,7 +12,7 @@ export interface ConfirmModalProps {
   /**
    * function called when modalApply event is fired
    */
-  modalApply?: (...args: any[]) => any;
+  modalApply: (...args: any[]) => any;
   /**
    * function called when modalClose event is fired
    */
diff --git a/src/components/ListPicker/index.d.ts b/src/components/ListPicker/index.d.ts
index 726136745..0a13e19ac 100644
--- a/src/components/ListPicker/index.d.ts
+++ b/src/components/ListPicker/index.d.ts
@@ -41,10 +41,10 @@ export interface ListPickerProps {
   itemType?: string;
   labelFormatter?: (...args: any[]) => any;
   addonFormatter?: (...args: any[]) => any;
-  modalApply?: (...args: any[]) => any;
+  modalApply: (...args: any[]) => any;
   modalDescription?: string;
   modalClassName?: string;
-  modalClose?: (...args: any[]) => any;
+  modalClose: (...args: any[]) => any;
   modalFootnote?: string;
   modalTitle?: string;
   show?: boolean;
diff --git a/src/components/ListPickerPure/index.d.ts b/src/components/ListPickerPure/index.d.ts
index 94ba04066..a81574860 100644
--- a/src/components/ListPickerPure/index.d.ts
+++ b/src/components/ListPickerPure/index.d.ts
@@ -16,7 +16,7 @@ export interface ListPickerPureSelectedItems {
 
 export interface ListPickerPureProps {
   allowMultiSelection?: boolean;
-  deselectItem?: (...args: any[]) => any;
+  deselectItem: (...args: any[]) => any;
   emptyMessage?: string;
   emptySvgSymbol?: React.ReactNode;
   labelFormatter?: (...args: any[]) => any;
@@ -24,7 +24,7 @@ export interface ListPickerPureProps {
   itemHeaders?: ListPickerPureItemHeaders;
   items?: ListPickerPureItems[];
   itemType?: string;
-  selectItem?: (...args: any[]) => any;
+  selectItem: (...args: any[]) => any;
   selectedItems?: ListPickerPureSelectedItems[];
 }
 
diff --git a/src/components/Toast/index.d.ts b/src/components/Toast/index.d.ts
index 9a85b3f75..47d11437d 100644
--- a/src/components/Toast/index.d.ts
+++ b/src/components/Toast/index.d.ts
@@ -28,31 +28,6 @@ export interface ToastContainerProps {
 
 declare const ToastContainer: React.FC<ToastContainerProps>;
 
-export type ToastNotificationPosition =
-  | 'top-right'
-  | 'top-center'
-  | 'top-left'
-  | 'bottom-right'
-  | 'bottom-center'
-  | 'bottom-left';
-
-export type ToastNotificationAutoClose = number | boolean;
-
-export type ToastNotificationTheme = 'success' | 'info' | 'alert' | 'attention';
-
-export interface ToastNotificationProps {
-  /**
-   * PropTypes.oneOf(['top-right', 'top-center', 'top-left', 'bottom-right', 'bottom-center', 'bottom-left'])
-   */
-  position?: ToastNotificationPosition;
-  autoClose?: ToastNotificationAutoClose;
-  title?: string;
-  theme?: ToastNotificationTheme;
-  message: React.ReactNode;
-}
-
-declare const ToastNotification: React.FC<ToastNotificationProps>;
-
 export type notifyTheme = 'success' | 'info' | 'alert' | 'attention';
 
 export interface notifyProps {
@@ -69,7 +44,6 @@ declare const dismiss: React.FC<dismissProps>;
 
 declare const Toast: {
   Container: typeof ToastContainer;
-  Notification: typeof ToastNotification;
   notify: typeof notify;
   dismiss: typeof dismiss;
 };
diff --git a/src/components/UserListPicker/index.d.ts b/src/components/UserListPicker/index.d.ts
index 37f6b7a90..fb1510d5a 100644
--- a/src/components/UserListPicker/index.d.ts
+++ b/src/components/UserListPicker/index.d.ts
@@ -32,9 +32,9 @@ export interface UserListPickerProps {
    * Array of { avatar: PropTypes.string, givenName: PropTypes.string, surname: PropTypes.string, id: PropTypes.number }
    */
   initialSelection?: UserListPickerInitialSelection[];
-  modalApply?: (...args: any[]) => any;
+  modalApply: (...args: any[]) => any;
   modalDescription?: string;
-  modalClose?: (...args: any[]) => any;
+  modalClose: (...args: any[]) => any;
   modalTitle?: string;
   show?: boolean;
   /**
diff --git a/www/containers/props.json b/www/containers/props.json
index 294b8e761..8333062ce 100644
--- a/www/containers/props.json
+++ b/www/containers/props.json
@@ -2488,12 +2488,8 @@
           "type": {
             "name": "func"
           },
-          "required": false,
-          "description": "",
-          "defaultValue": {
-            "value": "() => {\n  throw new Error('AdslotUi ListPicker needs a modalApply handler');\n}",
-            "computed": false
-          }
+          "required": true,
+          "description": ""
         },
         "modalDescription": {
           "type": {
@@ -2517,12 +2513,8 @@
           "type": {
             "name": "func"
           },
-          "required": false,
-          "description": "",
-          "defaultValue": {
-            "value": "() => {\n  throw new Error('AdslotUi ListPicker needs a modalClose handler');\n}",
-            "computed": false
-          }
+          "required": true,
+          "description": ""
         },
         "modalFootnote": {
           "type": {
@@ -2577,12 +2569,8 @@
           "type": {
             "name": "func"
           },
-          "required": false,
-          "description": "",
-          "defaultValue": {
-            "value": "() => {\n  throw new Error('AdslotUi ListPickerPure needs a deselectItem handler');\n}",
-            "computed": false
-          }
+          "required": true,
+          "description": ""
         },
         "emptyMessage": {
           "type": {
@@ -2671,12 +2659,8 @@
           "type": {
             "name": "func"
           },
-          "required": false,
-          "description": "",
-          "defaultValue": {
-            "value": "() => {\n  throw new Error('AdslotUi ListPickerPure needs a selectItem handler');\n}",
-            "computed": false
-          }
+          "required": true,
+          "description": ""
         },
         "selectedItems": {
           "type": {
@@ -6382,7 +6366,7 @@
           "required": false,
           "description": "",
           "defaultValue": {
-            "value": "(node) => {\n  throw new Error(`AdslotUi TreePickerNode needs an includeNode handler for ${node}`);\n}",
+            "value": "(node) => {\n  console.error(`AdslotUi TreePickerNode needs an includeNode handler for ${node.id}`);\n}",
             "computed": false
           }
         },
@@ -6419,7 +6403,7 @@
           "required": false,
           "description": "",
           "defaultValue": {
-            "value": "(node) => {\n  throw new Error(`AdslotUi TreePickerNode needs a removeNode handler for ${node}`);\n}",
+            "value": "(node) => {\n  console.error(`AdslotUi TreePickerNode needs a removeNode handler for ${node.id}`);\n}",
             "computed": false
           }
         },
@@ -6534,12 +6518,8 @@
           "type": {
             "name": "func"
           },
-          "required": false,
-          "description": "",
-          "defaultValue": {
-            "value": "() => {\n  throw new Error('AdslotUi UserListPicker needs a modalApply handler');\n}",
-            "computed": false
-          }
+          "required": true,
+          "description": ""
         },
         "modalDescription": {
           "type": {
@@ -6556,12 +6536,8 @@
           "type": {
             "name": "func"
           },
-          "required": false,
-          "description": "",
-          "defaultValue": {
-            "value": "() => {\n  throw new Error('AdslotUi UserListPicker needs a modalClose handler');\n}",
-            "computed": false
-          }
+          "required": true,
+          "description": ""
         },
         "modalTitle": {
           "type": {