diff --git a/web/package.json b/web/package.json
index 6f4a24b..1f2b6e3 100644
--- a/web/package.json
+++ b/web/package.json
@@ -31,7 +31,9 @@
     "react-tooltip": "^5.5.2",
     "stacktracey": "^2.1.8",
     "vite-plugin-pwa": "^0.14.6",
-    "workbox-window": "^6.5.4"
+    "workbox-window": "^6.5.4",
+    "zod": "^3.21.4",
+    "zod-formik-adapter": "^1.2.0"
   },
   "scripts": {
     "start": "vite",
diff --git a/web/src/components/inputs/select.tsx b/web/src/components/inputs/select.tsx
index c571ef0..abe5ad6 100644
--- a/web/src/components/inputs/select.tsx
+++ b/web/src/components/inputs/select.tsx
@@ -116,21 +116,27 @@ export const IndexerMultiSelect = ({
       <Field name={name} type="select" multiple={true}>
         {({
           field,
+          meta,
           form: { setFieldValue }
         }: FieldProps) => (
-          <RMSC
-            {...field}
-            options={options}
-            labelledBy={name}
-            value={field.value && field.value.map((item: IndexerMultiSelectOption) => ({
-              value: item.id, label: item.name
-            }))}
-            onChange={(values: MultiSelectOption[]) => {
-              const item = values && values.map((i) => ({ id: i.value, name: i.label }));
-              setFieldValue(field.name, item);
-            }}
-            className={settingsContext.darkTheme ? "dark" : ""}
-          />
+          <>
+            <RMSC
+              {...field}
+              options={options}
+              labelledBy={name}
+              value={field.value && field.value.map((item: IndexerMultiSelectOption) => ({
+                value: item.id, label: item.name
+              }))}
+              onChange={(values: MultiSelectOption[]) => {
+                const item = values && values.map((i) => ({ id: i.value, name: i.label }));
+                setFieldValue(field.name, item);
+              }}
+              className={settingsContext.darkTheme ? "dark" : ""}
+            />
+            {meta.touched && meta.error && (
+              <p className="error text-sm text-red-600 mt-1">* {meta.error}</p>
+            )}
+          </>
         )}
       </Field>
     </div>
@@ -153,6 +159,7 @@ export function DownloadClientSelect({
       <Field name={name} type="select">
         {({
           field,
+          meta,
           form: { setFieldValue }
         }: FieldProps) => (
           <Listbox
@@ -231,6 +238,9 @@ export function DownloadClientSelect({
                         ))}
                     </Listbox.Options>
                   </Transition>
+                  {meta.touched && meta.error && (
+                    <p className="error text-sm text-red-600 mt-1">* {meta.error}</p>
+                  )}
                 </div>
               </>
             )}
diff --git a/web/src/screens/filters/action.tsx b/web/src/screens/filters/action.tsx
index 22d5edf..d35f61b 100644
--- a/web/src/screens/filters/action.tsx
+++ b/web/src/screens/filters/action.tsx
@@ -1,20 +1,24 @@
+import React, { Fragment, useEffect, useRef, useState } from "react";
+import { useQuery } from "@tanstack/react-query";
+import { Field, FieldArray, FieldProps, FormikValues, useFormikContext } from "formik";
+import { Dialog, Switch as SwitchBasic, Transition } from "@headlessui/react";
+import { ChevronRightIcon } from "@heroicons/react/24/solid";
+import { Link } from "react-router-dom";
+
+import {
+  ActionContentLayoutOptions,
+  ActionRtorrentRenameOptions,
+  ActionTypeNameMap,
+  ActionTypeOptions
+} from "@domain/constants";
 import { AlertWarning } from "@components/alerts";
 import { DownloadClientSelect, NumberField, Select, SwitchGroup, TextField } from "@components/inputs";
-import { ActionContentLayoutOptions, ActionRtorrentRenameOptions, ActionTypeNameMap, ActionTypeOptions } from "@domain/constants";
-import React, { Fragment, useRef, useEffect, useState } from "react";
-import { useQuery } from "@tanstack/react-query";
 import { APIClient } from "@api/APIClient";
-import { Field, FieldArray, FieldProps, FormikValues } from "formik";
 import { EmptyListState } from "@components/emptystates";
 import { useToggle } from "@hooks/hooks";
 import { classNames } from "@utils";
-import { Dialog, Switch as SwitchBasic, Transition } from "@headlessui/react";
-import { ChevronRightIcon } from "@heroicons/react/24/solid";
 import { DeleteModal } from "@components/modals";
 import { CollapsableSection } from "./details";
-import { CustomTooltip } from "@components/tooltips/CustomTooltip";
-import { Link } from "react-router-dom";
-import { useFormikContext } from "formik";
 import { TextArea } from "@components/inputs/input";
 
 interface FilterActionsProps {
@@ -29,7 +33,8 @@ export function FilterActions({ filter, values }: FilterActionsProps) {
     { refetchOnWindowFocus: false }
   );
 
-  const newAction = {
+  const newAction: Action = {
+    id: 0,
     name: "new action",
     enabled: true,
     type: "TEST",
@@ -43,7 +48,7 @@ export function FilterActions({ filter, values }: FilterActionsProps) {
     paused: false,
     ignore_rules: false,
     skip_hash_check: false,
-    content_layout: "",
+    content_layout: "" || undefined,
     limit_upload_speed: 0,
     limit_download_speed: 0,
     limit_ratio: 0,
@@ -57,8 +62,8 @@ export function FilterActions({ filter, values }: FilterActionsProps) {
     webhook_type: "",
     webhook_method: "",
     webhook_data: "",
-    webhook_headers: []
-    //   client_id: 0,
+    webhook_headers: [],
+    client_id: 0
   };
 
   return (
@@ -108,7 +113,7 @@ interface TypeFormProps {
 }
 
 const TypeForm = ({ action, idx, clients }: TypeFormProps) => {
-  const { setFieldValue } = useFormikContext();
+  const { setFieldValue  } = useFormikContext();
   
   const resetClientField = (action: Action, idx: number, prevActionType: string): void => {
     const fieldName = `actions.${idx}.client_id`;
@@ -127,7 +132,7 @@ const TypeForm = ({ action, idx, clients }: TypeFormProps) => {
       action.type === "READARR" ||
       action.type === "SABNZBD"
     )) {
-      setFieldValue(fieldName, ""); // Reset the client_id field value
+      setFieldValue(fieldName, 0); // Reset the client_id field value
     }
   };
 
@@ -137,7 +142,8 @@ const TypeForm = ({ action, idx, clients }: TypeFormProps) => {
       resetClientField(action, idx, prevActionType);
     }
     setPrevActionType(action.type);
-  }, [action.type, idx, setFieldValue]); 
+  }, [action.type, idx, setFieldValue]);
+
   switch (action.type) {
   case "TEST":
     return (
@@ -209,7 +215,7 @@ const TypeForm = ({ action, idx, clients }: TypeFormProps) => {
               label="Save path"
               columns={6}
               placeholder="eg. /full/path/to/download_folder"
-              tooltip={<CustomTooltip anchorId={`actions.${idx}.save_path`} clickable={true}><div><p>Set a custom save path for this action. Automatic Torrent Management will take care of this if using qBittorrent with categories.</p><br /><p>The field can use macros to transform/add values from metadata:</p><a href='https://autobrr.com/filters/actions#macros' className='text-blue-400 visited:text-blue-400' target='_blank'>https://autobrr.com/filters/actions#macros</a></div></CustomTooltip>} /> 
+              tooltip={<div><p>Set a custom save path for this action. Automatic Torrent Management will take care of this if using qBittorrent with categories.</p><br /><p>The field can use macros to transform/add values from metadata:</p><a href='https://autobrr.com/filters/actions#macros' className='text-blue-400 visited:text-blue-400' target='_blank'>https://autobrr.com/filters/actions#macros</a></div>} />
           </div>
         </div>
 
@@ -219,13 +225,13 @@ const TypeForm = ({ action, idx, clients }: TypeFormProps) => {
             label="Category"
             columns={6}
             placeholder="eg. category"
-            tooltip={<CustomTooltip anchorId={`actions.${idx}.category`} clickable={true}><div><p>The field can use macros to transform/add values from metadata:</p><a href='https://autobrr.com/filters/actions#macros' className='text-blue-400 visited:text-blue-400' target='_blank'>https://autobrr.com/filters/actions#macros</a></div></CustomTooltip>} /> 
+            tooltip={<div><p>The field can use macros to transform/add values from metadata:</p><a href='https://autobrr.com/filters/actions#macros' className='text-blue-400 visited:text-blue-400' target='_blank'>https://autobrr.com/filters/actions#macros</a></div>} />
           <TextField
             name={`actions.${idx}.tags`}
             label="Tags"
             columns={6}
             placeholder="eg. tag1,tag2"
-            tooltip={<CustomTooltip anchorId={`actions.${idx}.tags`} clickable={true}><div><p>The field can use macros to transform/add values from metadata:</p><a href='https://autobrr.com/filters/actions#macros' className='text-blue-400 visited:text-blue-400' target='_blank'>https://autobrr.com/filters/actions#macros</a></div></CustomTooltip>} /> 
+            tooltip={<div><p>The field can use macros to transform/add values from metadata:</p><a href='https://autobrr.com/filters/actions#macros' className='text-blue-400 visited:text-blue-400' target='_blank'>https://autobrr.com/filters/actions#macros</a></div>} />
         </div>
 
         <CollapsableSection title="Rules" subtitle="client options">
@@ -266,7 +272,7 @@ const TypeForm = ({ action, idx, clients }: TypeFormProps) => {
             <SwitchGroup
               name={`actions.${idx}.ignore_rules`}
               label="Ignore client rules"
-              tooltip={<CustomTooltip anchorId={`actions.${idx}.ignore_rules`} clickable={true}><div><p>Choose to ignore rules set in <Link className='text-blue-400 visited:text-blue-400' to="/settings/clients">Client Settings</Link>.</p></div></CustomTooltip>} /> 
+              tooltip={<div><p>Choose to ignore rules set in <Link className='text-blue-400 visited:text-blue-400' to="/settings/clients">Client Settings</Link>.</p></div>} />
           </div>
           <div className="col-span-6">
             <Select
@@ -508,7 +514,7 @@ const TypeForm = ({ action, idx, clients }: TypeFormProps) => {
             label="Category"
             columns={6}
             placeholder="eg. category"
-            tooltip={<CustomTooltip anchorId={`actions.${idx}.category`} clickable={true}><p>Category must exist already.</p></CustomTooltip>} />
+            tooltip={<p>Category must exist already.</p>} />
         </div>
       </div>
     );
@@ -626,7 +632,7 @@ function FilterActionsItem({ action, clients, idx, initialEdit, remove }: Filter
                 label="Type"
                 optionDefaultText="Select type"
                 options={ActionTypeOptions}
-                tooltip={<CustomTooltip anchorId={`actions.${idx}.type`} clickable={true}><div><p>Select the download client type for this action.</p></div></CustomTooltip>}
+                tooltip={<div><p>Select the download client type for this action.</p></div>}
               />
 
               <TextField name={`actions.${idx}.name`} label="Name" columns={6} />
diff --git a/web/src/screens/filters/details.tsx b/web/src/screens/filters/details.tsx
index ad754d5..fefabdd 100644
--- a/web/src/screens/filters/details.tsx
+++ b/web/src/screens/filters/details.tsx
@@ -1,8 +1,10 @@
-import React, { useRef } from "react";
+import React, { useEffect, useRef } from "react";
 import { useMutation, useQuery, useQueryClient } from "@tanstack/react-query";
 import { NavLink, Route, Routes, useLocation, useNavigate, useParams } from "react-router-dom";
 import { toast } from "react-hot-toast";
 import { Form, Formik, FormikValues, useFormikContext } from "formik";
+import { z } from "zod";
+import { toFormikValidationSchema } from "zod-formik-adapter";
 import { ChevronDownIcon, ChevronRightIcon } from "@heroicons/react/24/solid";
 
 import {
@@ -140,6 +142,71 @@ const FormButtonsGroup = ({ values, deleteAction, reset }: FormButtonsGroupProps
   );
 };
 
+const FormErrorNotification = () => {
+  const { isValid, isValidating, isSubmitting, errors } = useFormikContext();
+
+  useEffect(() => {
+    if (!isValid && !isValidating && isSubmitting) {
+      console.log("validation errors: ", errors);
+      toast.custom((t) => <Toast type="error" body={`Validation error. Check fields: ${Object.keys(errors)}`} t={t}/>);
+    }
+  }, [isSubmitting, isValid, isValidating]);
+
+  return null;
+};
+
+const allowedClientType = ["QBITTORRENT", "DELUGE_V1", "DELUGE_V2", "RTORRENT", "TRANSMISSION","PORLA", "RADARR", "SONARR", "LIDARR", "WHISPARR", "READARR", "SABNZBD"];
+
+const actionSchema = z.object({
+  enabled: z.boolean(),
+  name: z.string(),
+  type: z.enum(["QBITTORRENT", "DELUGE_V1", "DELUGE_V2", "RTORRENT", "TRANSMISSION","PORLA", "RADARR", "SONARR", "LIDARR", "WHISPARR", "READARR", "SABNZBD", "TEST", "EXEC", "WATCH_FOLDER", "WEBHOOK"]),
+  client_id: z.number().optional(),
+  exec_cmd: z.string().optional(),
+  exec_args: z.string().optional(),
+  watch_folder: z.string().optional(),
+  category: z.string().optional(),
+  tags: z.string().optional(),
+  label: z.string().optional(),
+  save_path: z.string().optional(),
+  paused: z.boolean().optional(),
+  ignore_rules: z.boolean().optional(),
+  limit_upload_speed: z.number().optional(),
+  limit_download_speed: z.number().optional(),
+  limit_ratio: z.number().optional(),
+  limit_seed_time: z.number().optional(),
+  reannounce_skip: z.boolean().optional(),
+  reannounce_delete: z.boolean().optional(),
+  reannounce_interval: z.number().optional(),
+  reannounce_max_attempts: z.number().optional(),
+  webhook_host: z.string().optional(),
+  webhook_type: z.string().optional(),
+  webhook_method: z.string().optional(),
+  webhook_data: z.string().optional()
+}).superRefine((value, ctx) => {
+  if (allowedClientType.includes(value.type)) {
+    if (value.client_id === 0) {
+      ctx.addIssue({
+        message: "Must select client",
+        code: z.ZodIssueCode.custom,
+        path: ["client_id"]
+      });
+    }
+  }
+});
+
+const indexerSchema = z.object({
+  id: z.number(),
+  name: z.string().optional()
+});
+
+// Define the schema for the entire object
+const schema = z.object({
+  name: z.string(),
+  indexers: z.array(indexerSchema).min(1, { message: "Must select at least one indexer" }),
+  actions: z.array(actionSchema)
+});
+
 export default function FilterDetails() {
   const queryClient = useQueryClient();
   const navigate = useNavigate();
@@ -209,6 +276,9 @@ export default function FilterDetails() {
       if (a.type === "WEBHOOK") {
         a.webhook_method = "POST";
         a.webhook_type = "JSON";
+      } else {
+        a.webhook_method = "";
+        a.webhook_type = "";
       }
     });
 
@@ -312,9 +382,11 @@ export default function FilterDetails() {
               } as Filter}
               onSubmit={handleSubmit}
               enableReinitialize={true}
+              validationSchema={toFormikValidationSchema(schema)}
             >
               {({ values, dirty, resetForm }) => (
                 <Form>
+                  <FormErrorNotification />
                   <Routes>
                     <Route index element={<General />} />
                     <Route path="movies-tv" element={<MoviesTv />} />
diff --git a/web/yarn.lock b/web/yarn.lock
index 82390d1..34f85b9 100644
--- a/web/yarn.lock
+++ b/web/yarn.lock
@@ -6973,6 +6973,8 @@ __metadata:
     vite: ^4.2.1
     vite-plugin-pwa: ^0.14.6
     workbox-window: ^6.5.4
+    zod: ^3.21.4
+    zod-formik-adapter: ^1.2.0
   languageName: unknown
   linkType: soft
 
@@ -7272,3 +7274,20 @@ __metadata:
   checksum: f77b3d8d00310def622123df93d4ee654fc6a0096182af8bd60679ddcdfb3474c56c6c7190817c84a2785648cdee9d721c0154eb45698c62176c322fb46fc700
   languageName: node
   linkType: hard
+
+"zod-formik-adapter@npm:^1.2.0":
+  version: 1.2.0
+  resolution: "zod-formik-adapter@npm:1.2.0"
+  peerDependencies:
+    formik: ^2.2.9
+    zod: ^3.14.4
+  checksum: 41f9dc4550fb529bdeb9de2711a7e307140c44c5b65c28f7349da9b030276c3747962b15fbbc50b6fda1959b3a3fdcaff707f1cdfef0b0b6a3e745d017c8f73a
+  languageName: node
+  linkType: hard
+
+"zod@npm:^3.21.4":
+  version: 3.21.4
+  resolution: "zod@npm:3.21.4"
+  checksum: f185ba87342ff16f7a06686767c2b2a7af41110c7edf7c1974095d8db7a73792696bcb4a00853de0d2edeb34a5b2ea6a55871bc864227dace682a0a28de33e1f
+  languageName: node
+  linkType: hard