diff --git a/ui/address/AddressDetails.tsx b/ui/address/AddressDetails.tsx
index 1554ee726f..662fd86a70 100644
--- a/ui/address/AddressDetails.tsx
+++ b/ui/address/AddressDetails.tsx
@@ -6,6 +6,7 @@ import throwOnResourceLoadError from 'lib/errors/throwOnResourceLoadError';
 import getQueryParamString from 'lib/router/getQueryParamString';
 import AddressCounterItem from 'ui/address/details/AddressCounterItem';
 import ServiceDegradationWarning from 'ui/shared/alerts/ServiceDegradationWarning';
+import isCustomAppError from 'ui/shared/AppError/isCustomAppError';
 import DataFetchAlert from 'ui/shared/DataFetchAlert';
 import DetailsInfoItem from 'ui/shared/DetailsInfoItem';
 import DetailsSponsoredItem from 'ui/shared/DetailsSponsoredItem';
@@ -59,15 +60,16 @@ const AddressDetails = ({ addressQuery, scrollRef }: Props) => {
     has_validated_blocks: false,
   }), [ addressHash ]);
 
-  const is404Error = addressQuery.isError && 'status' in addressQuery.error && addressQuery.error.status === 404;
-  const is422Error = addressQuery.isError && 'status' in addressQuery.error && addressQuery.error.status === 422;
-
-  if (addressQuery.isError && is422Error) {
-    throwOnResourceLoadError(addressQuery);
-  }
-
-  if (addressQuery.isError && !is404Error) {
-    return <DataFetchAlert/>;
+  // error handling (except 404 codes)
+  if (addressQuery.isError) {
+    if (isCustomAppError(addressQuery.error)) {
+      const is404Error = addressQuery.isError && 'status' in addressQuery.error && addressQuery.error.status === 404;
+      if (!is404Error) {
+        throwOnResourceLoadError(addressQuery);
+      }
+    } else {
+      return <DataFetchAlert/>;
+    }
   }
 
   const data = addressQuery.isError ? error404Data : addressQuery.data;
diff --git a/ui/pages/Blob.tsx b/ui/pages/Blob.tsx
index 007ff7f435..4df70d1ba9 100644
--- a/ui/pages/Blob.tsx
+++ b/ui/pages/Blob.tsx
@@ -7,6 +7,7 @@ import getQueryParamString from 'lib/router/getQueryParamString';
 import { BLOB } from 'stubs/blobs';
 import BlobInfo from 'ui/blob/BlobInfo';
 import TextAd from 'ui/shared/ad/TextAd';
+import isCustomAppError from 'ui/shared/AppError/isCustomAppError';
 import DataFetchAlert from 'ui/shared/DataFetchAlert';
 import BlobEntity from 'ui/shared/entities/blob/BlobEntity';
 import PageTitle from 'ui/shared/Page/PageTitle';
@@ -25,7 +26,7 @@ const BlobPageContent = () => {
 
   const content = (() => {
     if (isError) {
-      if (error?.status === 422 || error?.status === 404) {
+      if (isCustomAppError(error)) {
         throwOnResourceLoadError({ resource: 'blob', error, isError: true });
       }
 
diff --git a/ui/pages/Transaction.tsx b/ui/pages/Transaction.tsx
index 74853da4ee..07ccc1d687 100644
--- a/ui/pages/Transaction.tsx
+++ b/ui/pages/Transaction.tsx
@@ -9,6 +9,7 @@ import throwOnResourceLoadError from 'lib/errors/throwOnResourceLoadError';
 import getQueryParamString from 'lib/router/getQueryParamString';
 import { publicClient } from 'lib/web3/client';
 import TextAd from 'ui/shared/ad/TextAd';
+import isCustomAppError from 'ui/shared/AppError/isCustomAppError';
 import EntityTags from 'ui/shared/EntityTags';
 import PageTitle from 'ui/shared/Page/PageTitle';
 import RoutedTabs from 'ui/shared/Tabs/RoutedTabs';
@@ -103,7 +104,7 @@ const TransactionPageContent = () => {
   })();
 
   if (isError && !showDegradedView) {
-    if (error?.status === 422 || error?.status === 404) {
+    if (isCustomAppError(error)) {
       throwOnResourceLoadError({ resource: 'tx', error, isError: true });
     }
   }
diff --git a/ui/shared/AppError/AppError.pw.tsx b/ui/shared/AppError/AppError.pw.tsx
index a3405e2b99..36f23b03f3 100644
--- a/ui/shared/AppError/AppError.pw.tsx
+++ b/ui/shared/AppError/AppError.pw.tsx
@@ -36,8 +36,8 @@ test('status code 500', async({ mount }) => {
   await expect(component).toHaveScreenshot();
 });
 
-test('invalid tx hash', async({ mount }) => {
-  const error = { message: 'Invalid tx hash', cause: { status: 422, resource: 'tx' } } as Error;
+test('tx not found', async({ mount }) => {
+  const error = { message: 'Not found', cause: { status: 404, resource: 'tx' } } as Error;
   const component = await mount(
     <TestApp>
       <AppError error={ error }/>
diff --git a/ui/shared/AppError/AppError.tsx b/ui/shared/AppError/AppError.tsx
index b5199d5e5b..e3a0a16aff 100644
--- a/ui/shared/AppError/AppError.tsx
+++ b/ui/shared/AppError/AppError.tsx
@@ -11,8 +11,8 @@ import getResourceErrorPayload from 'lib/errors/getResourceErrorPayload';
 import AppErrorIcon from './AppErrorIcon';
 import AppErrorTitle from './AppErrorTitle';
 import AppErrorBlockConsensus from './custom/AppErrorBlockConsensus';
-import AppErrorInvalidTxHash from './custom/AppErrorInvalidTxHash';
 import AppErrorTooManyRequests from './custom/AppErrorTooManyRequests';
+import AppErrorTxNotFound from './custom/AppErrorTxNotFound';
 
 interface Props {
   className?: string;
@@ -47,11 +47,11 @@ const AppError = ({ error, className }: Props) => {
             undefined;
     const statusCode = getErrorCauseStatusCode(error) || getErrorObjStatusCode(error);
 
-    const isInvalidTxHash = cause && 'resource' in cause && cause.resource === 'tx' && statusCode === 422;
+    const isInvalidTxHash = cause && 'resource' in cause && cause.resource === 'tx' && statusCode === 404;
     const isBlockConsensus = messageInPayload?.includes('Block lost consensus');
 
     if (isInvalidTxHash) {
-      return <AppErrorInvalidTxHash/>;
+      return <AppErrorTxNotFound/>;
     }
 
     if (isBlockConsensus) {
diff --git a/ui/shared/AppError/__screenshots__/AppError.pw.tsx_default_invalid-tx-hash-1.png b/ui/shared/AppError/__screenshots__/AppError.pw.tsx_default_invalid-tx-hash-1.png
deleted file mode 100644
index b06fb92cb9..0000000000
Binary files a/ui/shared/AppError/__screenshots__/AppError.pw.tsx_default_invalid-tx-hash-1.png and /dev/null differ
diff --git a/ui/shared/AppError/__screenshots__/AppError.pw.tsx_default_tx-not-found-1.png b/ui/shared/AppError/__screenshots__/AppError.pw.tsx_default_tx-not-found-1.png
new file mode 100644
index 0000000000..ba19d9d787
Binary files /dev/null and b/ui/shared/AppError/__screenshots__/AppError.pw.tsx_default_tx-not-found-1.png differ
diff --git a/ui/shared/AppError/custom/AppErrorInvalidTxHash.tsx b/ui/shared/AppError/custom/AppErrorTxNotFound.tsx
similarity index 83%
rename from ui/shared/AppError/custom/AppErrorInvalidTxHash.tsx
rename to ui/shared/AppError/custom/AppErrorTxNotFound.tsx
index a6da98596f..6686f43582 100644
--- a/ui/shared/AppError/custom/AppErrorInvalidTxHash.tsx
+++ b/ui/shared/AppError/custom/AppErrorTxNotFound.tsx
@@ -1,13 +1,12 @@
 /* eslint-disable max-len */
-import { Box, OrderedList, ListItem, useColorModeValue, Flex } from '@chakra-ui/react';
+import { Box, OrderedList, ListItem, useColorModeValue, Flex, chakra } from '@chakra-ui/react';
 import React from 'react';
 
 import IconSvg from 'ui/shared/IconSvg';
 
 import AppErrorTitle from '../AppErrorTitle';
 
-const AppErrorInvalidTxHash = () => {
-  const textColor = useColorModeValue('gray.500', 'gray.400');
+const AppErrorTxNotFound = () => {
   const snippet = {
     borderColor: useColorModeValue('blackAlpha.300', 'whiteAlpha.300'),
     iconBg: useColorModeValue('blackAlpha.800', 'whiteAlpha.800'),
@@ -36,7 +35,7 @@ const AppErrorInvalidTxHash = () => {
         </Flex>
       </Box>
       <AppErrorTitle title="Sorry, we are unable to locate this transaction hash"/>
-      <OrderedList color={ textColor } mt={ 3 } spacing={ 3 }>
+      <OrderedList mt={ 3 } spacing={ 3 }>
         <ListItem>
             If you have just submitted this transaction please wait for at least 30 seconds before refreshing this page.
         </ListItem>
@@ -47,11 +46,13 @@ const AppErrorInvalidTxHash = () => {
             During times when the network is busy (i.e during ICOs) it can take a while for your transaction to propagate through the network and for us to index it.
         </ListItem>
         <ListItem>
-            If it still does not show up after 1 hour, please check with your sender/exchange/wallet/transaction provider for additional information.
+          <span>If it still does not show up after 1 hour, please check with your </span>
+          <chakra.span fontWeight={ 600 }>sender/exchange/wallet/transaction provider</chakra.span>
+          <span> for additional information.</span>
         </ListItem>
       </OrderedList>
     </>
   );
 };
 
-export default AppErrorInvalidTxHash;
+export default AppErrorTxNotFound;
diff --git a/ui/shared/AppError/isCustomAppError.ts b/ui/shared/AppError/isCustomAppError.ts
new file mode 100644
index 0000000000..328368e2ae
--- /dev/null
+++ b/ui/shared/AppError/isCustomAppError.ts
@@ -0,0 +1,8 @@
+import type { ResourceError } from 'lib/api/resources';
+
+// status codes when custom error screen should be shown
+const CUSTOM_STATUS_CODES = [ 404, 422, 429 ];
+
+export default function isCustomAppError(error: ResourceError<unknown>) {
+  return CUSTOM_STATUS_CODES.includes(error.status);
+}
diff --git a/ui/tx/TxDetailsDegraded.tsx b/ui/tx/TxDetailsDegraded.tsx
index d67441350c..e1bace40d9 100644
--- a/ui/tx/TxDetailsDegraded.tsx
+++ b/ui/tx/TxDetailsDegraded.tsx
@@ -7,12 +7,14 @@ import type { Transaction } from 'types/api/transaction';
 
 import { SECOND } from 'lib/consts';
 import dayjs from 'lib/date/dayjs';
+import throwOnResourceLoadError from 'lib/errors/throwOnResourceLoadError';
 import hexToDecimal from 'lib/hexToDecimal';
 import { publicClient } from 'lib/web3/client';
 import { GET_BLOCK, GET_TRANSACTION, GET_TRANSACTION_RECEIPT, GET_TRANSACTION_CONFIRMATIONS } from 'stubs/RPC';
 import { unknownAddress } from 'ui/shared/address/utils';
 import ServiceDegradationWarning from 'ui/shared/alerts/ServiceDegradationWarning';
 import TestnetWarning from 'ui/shared/alerts/TestnetWarning';
+import isCustomAppError from 'ui/shared/AppError/isCustomAppError';
 import DataFetchAlert from 'ui/shared/DataFetchAlert';
 
 import TxInfo from './details/TxInfo';
@@ -141,8 +143,8 @@ const TxDetailsDegraded = ({ hash, txQuery }: Props) => {
   }, [ txQuery.setRefetchOnError ]);
 
   if (!query.data) {
-    if (originalError?.status === 404) {
-      throw Error('Not found', { cause: { status: 404 } as unknown as Error });
+    if (originalError && isCustomAppError(originalError)) {
+      throwOnResourceLoadError({ resource: 'tx', error: originalError, isError: true });
     }
 
     return <DataFetchAlert/>;
diff --git a/ui/txnBatches/zkEvmL2/ZkEvmL2TxnBatchDetails.tsx b/ui/txnBatches/zkEvmL2/ZkEvmL2TxnBatchDetails.tsx
index 234a178ccb..950a2ccec7 100644
--- a/ui/txnBatches/zkEvmL2/ZkEvmL2TxnBatchDetails.tsx
+++ b/ui/txnBatches/zkEvmL2/ZkEvmL2TxnBatchDetails.tsx
@@ -10,6 +10,7 @@ import { route } from 'nextjs-routes';
 
 import type { ResourceError } from 'lib/api/resources';
 import throwOnResourceLoadError from 'lib/errors/throwOnResourceLoadError';
+import isCustomAppError from 'ui/shared/AppError/isCustomAppError';
 import CopyToClipboard from 'ui/shared/CopyToClipboard';
 import DataFetchAlert from 'ui/shared/DataFetchAlert';
 import DetailsInfoItem from 'ui/shared/DetailsInfoItem';
@@ -42,7 +43,7 @@ const ZkEvmL2TxnBatchDetails = ({ query }: Props) => {
   }, [ data, router ]);
 
   if (isError) {
-    if (error?.status === 404 || error?.status === 422) {
+    if (isCustomAppError(error)) {
       throwOnResourceLoadError({ isError, error });
     }
 
diff --git a/ui/userOp/UserOpDetails.tsx b/ui/userOp/UserOpDetails.tsx
index 461e403b7c..9d06807485 100644
--- a/ui/userOp/UserOpDetails.tsx
+++ b/ui/userOp/UserOpDetails.tsx
@@ -12,6 +12,7 @@ import { WEI, WEI_IN_GWEI } from 'lib/consts';
 import throwOnResourceLoadError from 'lib/errors/throwOnResourceLoadError';
 import { space } from 'lib/html-entities';
 import { currencyUnits } from 'lib/units';
+import isCustomAppError from 'ui/shared/AppError/isCustomAppError';
 import CurrencyValue from 'ui/shared/CurrencyValue';
 import DataFetchAlert from 'ui/shared/DataFetchAlert';
 import DetailsInfoItem from 'ui/shared/DetailsInfoItem';
@@ -48,7 +49,7 @@ const UserOpDetails = ({ query }: Props) => {
   }, []);
 
   if (isError) {
-    if (error?.status === 400 || error?.status === 404 || error?.status === 422) {
+    if (error?.status === 400 || isCustomAppError(error)) {
       throwOnResourceLoadError({ isError, error });
     }