diff --git a/002_source/cms/src/components/dashboard/layout/notifications-popover.tsx b/002_source/cms/src/components/dashboard/layout/notifications-popover/index.tsx
similarity index 58%
rename from 002_source/cms/src/components/dashboard/layout/notifications-popover.tsx
rename to 002_source/cms/src/components/dashboard/layout/notifications-popover/index.tsx
index b5c6153..0f35fdc 100644
--- a/002_source/cms/src/components/dashboard/layout/notifications-popover.tsx
+++ b/002_source/cms/src/components/dashboard/layout/notifications-popover/index.tsx
@@ -18,46 +18,14 @@ import { X as XIcon } from '@phosphor-icons/react/dist/ssr/X';
 import { useTranslation } from 'react-i18next';
 
 import { dayjs } from '@/lib/dayjs';
-
-export type Notification = { id: string; createdAt: Date; read: boolean } & (
-  | { type: 'new_feature'; description: string }
-  | { type: 'new_company'; author: { name: string; avatar?: string }; company: { name: string } }
-  | { type: 'new_job'; author: { name: string; avatar?: string }; job: { title: string } }
-);
-
-const notifications = [
-  {
-    id: 'EV-004',
-    createdAt: dayjs().subtract(7, 'minute').subtract(5, 'hour').subtract(1, 'day').toDate(),
-    read: false,
-    type: 'new_job',
-    author: { name: 'Jie Yan', avatar: '/assets/avatar-8.png' },
-    job: { title: 'Remote React / React Native Developer' },
-  },
-  {
-    id: 'EV-003',
-    createdAt: dayjs().subtract(18, 'minute').subtract(3, 'hour').subtract(5, 'day').toDate(),
-    read: true,
-    type: 'new_job',
-    author: { name: 'Fran Perez', avatar: '/assets/avatar-5.png' },
-    job: { title: 'Senior Golang Backend Engineer' },
-  },
-  {
-    id: 'EV-002',
-    createdAt: dayjs().subtract(4, 'minute').subtract(5, 'hour').subtract(7, 'day').toDate(),
-    read: true,
-    type: 'new_feature',
-    description: 'Logistics management is now available',
-  },
-  {
-    id: 'EV-001',
-    createdAt: dayjs().subtract(7, 'minute').subtract(8, 'hour').subtract(7, 'day').toDate(),
-    read: true,
-    type: 'new_company',
-    author: { name: 'Jie Yan', avatar: '/assets/avatar-8.png' },
-    company: { name: 'Stripe' },
-  },
-] satisfies Notification[];
+// import type { Notification } from './type.d.tsx.del';
+import { SampleNotifications } from './sample-notifications';
+import { useHelloworld } from '@/hooks/use-helloworld';
+import { getAllNotifications } from '@/db/Notifications/GetAll';
+import { ListResult, RecordModel } from 'pocketbase';
+import { defaultNotification } from '@/db/Notifications/constants';
+import { getNotificationsByUserId } from '@/db/Notifications/GetNotificationByUserId';
+import { Notification } from '@/db/Notifications/type';
 
 export interface NotificationsPopoverProps {
   anchorEl: null | Element;
@@ -75,6 +43,38 @@ export function NotificationsPopover({
   open = false,
 }: NotificationsPopoverProps): React.JSX.Element {
   const { t } = useTranslation();
+  const [notiList, setNotiList] = React.useState<Notification[]>([]);
+
+  const [loading, setLoading] = React.useState(false);
+  const [error, setError] = React.useState<string | null>(null);
+
+  const { data, handleClose, handleOpen, open: testOpen } = useHelloworld<string>();
+  React.useEffect(() => {
+    setLoading(true);
+    async function LoadAllNotifications() {
+      const notiList: Notification[] = await getNotificationsByUserId('1');
+      setNotiList(notiList);
+    }
+    setLoading(false);
+    void LoadAllNotifications();
+  }, []);
+
+  if (loading) return <>Loading</>;
+  if (error) return <>Error</>;
+  if (notiList.length == 0)
+    return (
+      <Popover
+        anchorEl={anchorEl}
+        anchorOrigin={{ horizontal: 'right', vertical: 'bottom' }}
+        onClose={onClose}
+        open={open}
+        slotProps={{ paper: { sx: { width: '380px' } } }}
+        transformOrigin={{ horizontal: 'right', vertical: 'top' }}
+      >
+        list is empty
+      </Popover>
+    );
+
   return (
     <Popover
       anchorEl={anchorEl}
@@ -84,24 +84,31 @@ export function NotificationsPopover({
       slotProps={{ paper: { sx: { width: '380px' } } }}
       transformOrigin={{ horizontal: 'right', vertical: 'top' }}
     >
-      <Stack direction="row" spacing={2} sx={{ alignItems: 'center', justifyContent: 'space-between', px: 3, py: 2 }}>
+      <Stack
+        direction="row"
+        spacing={2}
+        sx={{ alignItems: 'center', justifyContent: 'space-between', px: 3, py: 2 }}
+      >
         <Typography variant="h6">{t('Notifications')}</Typography>
         <Tooltip title={t('Mark all as read')}>
-          <IconButton edge="end" onClick={onMarkAllAsRead}>
+          <IconButton
+            edge="end"
+            onClick={onMarkAllAsRead}
+          >
             <EnvelopeSimpleIcon />
           </IconButton>
         </Tooltip>
       </Stack>
-      {notifications.length === 0 ? (
+      {notiList.length === 0 ? (
         <Box sx={{ p: 2 }}>
           <Typography variant="subtitle2">{t('There are no notifications')}</Typography>
         </Box>
       ) : (
         <Box sx={{ maxHeight: '270px', overflowY: 'auto' }}>
           <List disablePadding>
-            {notifications.map((notification, index) => (
+            {notiList.map((notification, index) => (
               <NotificationItem
-                divider={index < notifications.length - 1}
+                divider={index < SampleNotifications.length - 1}
                 key={notification.id}
                 notification={notification}
                 onRemove={() => {
@@ -124,10 +131,17 @@ interface NotificationItemProps {
 
 function NotificationItem({ divider, notification, onRemove }: NotificationItemProps): React.JSX.Element {
   return (
-    <ListItem divider={divider} sx={{ alignItems: 'flex-start', justifyContent: 'space-between' }}>
+    <ListItem
+      divider={divider}
+      sx={{ alignItems: 'flex-start', justifyContent: 'space-between' }}
+    >
       <NotificationContent notification={notification} />
       <Tooltip title="Remove">
-        <IconButton edge="end" onClick={onRemove} size="small">
+        <IconButton
+          edge="end"
+          onClick={onRemove}
+          size="small"
+        >
           <XIcon />
         </IconButton>
       </Tooltip>
@@ -142,14 +156,21 @@ interface NotificationContentProps {
 function NotificationContent({ notification }: NotificationContentProps): React.JSX.Element {
   if (notification.type === 'new_feature') {
     return (
-      <Stack direction="row" spacing={2} sx={{ alignItems: 'flex-start' }}>
+      <Stack
+        direction="row"
+        spacing={2}
+        sx={{ alignItems: 'flex-start' }}
+      >
         <Avatar>
           <ChatTextIcon fontSize="var(--Icon-fontSize)" />
         </Avatar>
         <div>
           <Typography variant="subtitle2">New feature!</Typography>
           <Typography variant="body2">{notification.description}</Typography>
-          <Typography color="text.secondary" variant="caption">
+          <Typography
+            color="text.secondary"
+            variant="caption"
+          >
             {dayjs(notification.createdAt).format('MMM D, hh:mm A')}
           </Typography>
         </div>
@@ -159,22 +180,35 @@ function NotificationContent({ notification }: NotificationContentProps): React.
 
   if (notification.type === 'new_company') {
     return (
-      <Stack direction="row" spacing={2} sx={{ alignItems: 'flex-start' }}>
+      <Stack
+        direction="row"
+        spacing={2}
+        sx={{ alignItems: 'flex-start' }}
+      >
         <Avatar src={notification.author.avatar}>
           <UserIcon />
         </Avatar>
         <div>
           <Typography variant="body2">
-            <Typography component="span" variant="subtitle2">
+            <Typography
+              component="span"
+              variant="subtitle2"
+            >
               {notification.author.name}
             </Typography>{' '}
             created{' '}
-            <Link underline="always" variant="body2">
+            <Link
+              underline="always"
+              variant="body2"
+            >
               {notification.company.name}
             </Link>{' '}
             company
           </Typography>
-          <Typography color="text.secondary" variant="caption">
+          <Typography
+            color="text.secondary"
+            variant="caption"
+          >
             {dayjs(notification.createdAt).format('MMM D, hh:mm A')}
           </Typography>
         </div>
@@ -184,21 +218,34 @@ function NotificationContent({ notification }: NotificationContentProps): React.
 
   if (notification.type === 'new_job') {
     return (
-      <Stack direction="row" spacing={2} sx={{ alignItems: 'flex-start' }}>
+      <Stack
+        direction="row"
+        spacing={2}
+        sx={{ alignItems: 'flex-start' }}
+      >
         <Avatar src={notification.author.avatar}>
           <UserIcon />
         </Avatar>
         <div>
           <Typography variant="body2">
-            <Typography component="span" variant="subtitle2">
+            <Typography
+              component="span"
+              variant="subtitle2"
+            >
               {notification.author.name}
             </Typography>{' '}
             added a new job{' '}
-            <Link underline="always" variant="body2">
+            <Link
+              underline="always"
+              variant="body2"
+            >
               {notification.job.title}
             </Link>
           </Typography>
-          <Typography color="text.secondary" variant="caption">
+          <Typography
+            color="text.secondary"
+            variant="caption"
+          >
             {dayjs(notification.createdAt).format('MMM D, hh:mm A')}
           </Typography>
         </div>
diff --git a/002_source/cms/src/components/dashboard/layout/notifications-popover/sample-notifications.tsx b/002_source/cms/src/components/dashboard/layout/notifications-popover/sample-notifications.tsx
new file mode 100644
index 0000000..1259e17
--- /dev/null
+++ b/002_source/cms/src/components/dashboard/layout/notifications-popover/sample-notifications.tsx
@@ -0,0 +1,37 @@
+'use client';
+import { dayjs } from '@/lib/dayjs';
+import type { Notification } from './type.d.tsx.del';
+
+export const SampleNotifications = [
+  {
+    id: 'EV-004',
+    createdAt: dayjs().subtract(7, 'minute').subtract(5, 'hour').subtract(1, 'day').toDate(),
+    read: false,
+    type: 'new_job',
+    author: { name: 'Jie Yan', avatar: '/assets/avatar-8.png' },
+    job: { title: 'Remote React / React Native Developer' },
+  },
+  {
+    id: 'EV-003',
+    createdAt: dayjs().subtract(18, 'minute').subtract(3, 'hour').subtract(5, 'day').toDate(),
+    read: true,
+    type: 'new_job',
+    author: { name: 'Fran Perez', avatar: '/assets/avatar-5.png' },
+    job: { title: 'Senior Golang Backend Engineer' },
+  },
+  {
+    id: 'EV-002',
+    createdAt: dayjs().subtract(4, 'minute').subtract(5, 'hour').subtract(7, 'day').toDate(),
+    read: true,
+    type: 'new_feature',
+    description: 'Logistics management is now available',
+  },
+  {
+    id: 'EV-001',
+    createdAt: dayjs().subtract(7, 'minute').subtract(8, 'hour').subtract(7, 'day').toDate(),
+    read: true,
+    type: 'new_company',
+    author: { name: 'Jie Yan', avatar: '/assets/avatar-8.png' },
+    company: { name: 'Stripe' },
+  },
+] satisfies Notification[];
diff --git a/002_source/cms/src/components/dashboard/notification/type.d.ts b/002_source/cms/src/components/dashboard/notification/type.d.ts
new file mode 100644
index 0000000..a5fd6ea
--- /dev/null
+++ b/002_source/cms/src/components/dashboard/notification/type.d.ts
@@ -0,0 +1,12 @@
+export interface NotificationFormProps {
+  id?: string;
+  title: string;
+  message: string;
+  isRead: boolean;
+  createdAt: Date;
+  updatedAt: Date;
+}
+
+export interface NotificationItem extends NotificationFormProps {
+  id: string;
+}
diff --git a/002_source/cms/src/db/Notifications/Create.tsx b/002_source/cms/src/db/Notifications/Create.tsx
new file mode 100644
index 0000000..b3da625
--- /dev/null
+++ b/002_source/cms/src/db/Notifications/Create.tsx
@@ -0,0 +1,11 @@
+// api method for create notification record
+// RULES:
+// TBA
+import { pb } from '@/lib/pb';
+import { COL_NOTIFICATIONS } from '@/constants';
+import type { NotificationFormProps } from '@/components/dashboard/notification/type.d';
+import type { RecordModel } from 'pocketbase';
+
+export async function createNotification(data: NotificationFormProps): Promise<RecordModel> {
+  return pb.collection(COL_NOTIFICATIONS).create(data);
+}
diff --git a/002_source/cms/src/db/Notifications/Delete.tsx b/002_source/cms/src/db/Notifications/Delete.tsx
new file mode 100644
index 0000000..8e4fbee
--- /dev/null
+++ b/002_source/cms/src/db/Notifications/Delete.tsx
@@ -0,0 +1,9 @@
+// api method for delete notification record
+// RULES:
+// TBA
+import { pb } from '@/lib/pb';
+import { COL_NOTIFICATIONS } from '@/constants';
+
+export async function deleteNotification(id: string): Promise<boolean> {
+  return pb.collection(COL_NOTIFICATIONS).delete(id);
+}
diff --git a/002_source/cms/src/db/Notifications/GetActiveCount.tsx b/002_source/cms/src/db/Notifications/GetActiveCount.tsx
new file mode 100644
index 0000000..a8679de
--- /dev/null
+++ b/002_source/cms/src/db/Notifications/GetActiveCount.tsx
@@ -0,0 +1,9 @@
+import { COL_CUSTOMERS } from '@/constants';
+import { pb } from '@/lib/pb';
+
+export default async function GetActiveCount(): Promise<number> {
+  const { totalItems: count } = await pb.collection(COL_CUSTOMERS).getList(1, 1, {
+    filter: 'status = "active"',
+  });
+  return count;
+}
diff --git a/002_source/cms/src/db/Notifications/GetAll.tsx b/002_source/cms/src/db/Notifications/GetAll.tsx
new file mode 100644
index 0000000..f43121c
--- /dev/null
+++ b/002_source/cms/src/db/Notifications/GetAll.tsx
@@ -0,0 +1,10 @@
+// api method for get all notification records
+// RULES:
+// TBA
+import { pb } from '@/lib/pb';
+import { COL_NOTIFICATIONS } from '@/constants';
+import { RecordModel } from 'pocketbase';
+
+export async function getAllNotifications(options = {}): Promise<RecordModel[]> {
+  return pb.collection(COL_NOTIFICATIONS).getFullList(options);
+}
diff --git a/002_source/cms/src/db/Notifications/GetAllCount.tsx b/002_source/cms/src/db/Notifications/GetAllCount.tsx
new file mode 100644
index 0000000..a10b7a3
--- /dev/null
+++ b/002_source/cms/src/db/Notifications/GetAllCount.tsx
@@ -0,0 +1,7 @@
+import { pb } from '@/lib/pb';
+import { COL_CUSTOMERS } from '@/constants';
+
+export async function getAllCustomersCount(): Promise<number> {
+  const result = await pb.collection(COL_CUSTOMERS).getList(1, 1);
+  return result.totalItems;
+}
diff --git a/002_source/cms/src/db/Notifications/GetBlockedCount.tsx b/002_source/cms/src/db/Notifications/GetBlockedCount.tsx
new file mode 100644
index 0000000..261321c
--- /dev/null
+++ b/002_source/cms/src/db/Notifications/GetBlockedCount.tsx
@@ -0,0 +1,9 @@
+import { COL_CUSTOMERS } from '@/constants';
+import { pb } from '@/lib/pb';
+
+export default async function GetBlockedCount(): Promise<number> {
+  const { totalItems: count } = await pb.collection(COL_CUSTOMERS).getList(1, 1, {
+    filter: 'status = "blocked"',
+  });
+  return count;
+}
diff --git a/002_source/cms/src/db/Notifications/GetById.tsx b/002_source/cms/src/db/Notifications/GetById.tsx
new file mode 100644
index 0000000..ed3f66b
--- /dev/null
+++ b/002_source/cms/src/db/Notifications/GetById.tsx
@@ -0,0 +1,10 @@
+// api method for get notification by id
+// RULES:
+// TBA
+import { pb } from '@/lib/pb';
+import { COL_NOTIFICATIONS } from '@/constants';
+import { RecordModel } from 'pocketbase';
+
+export async function getNotificationById(id: string): Promise<RecordModel> {
+  return pb.collection(COL_NOTIFICATIONS).getOne(id);
+}
diff --git a/002_source/cms/src/db/Notifications/GetNotificationByUserId.tsx b/002_source/cms/src/db/Notifications/GetNotificationByUserId.tsx
new file mode 100644
index 0000000..1a69f8f
--- /dev/null
+++ b/002_source/cms/src/db/Notifications/GetNotificationByUserId.tsx
@@ -0,0 +1,12 @@
+// api method for get notifications by user id
+import { pb } from '@/lib/pb';
+import { COL_NOTIFICATIONS } from '@/constants';
+import type { Notification } from './type.d';
+
+export async function getNotificationsByUserId(userId: string): Promise<Notification[]> {
+  const records = await pb.collection(COL_NOTIFICATIONS).getFullList({
+    filter: `author.id = "000000000000001"`,
+    sort: '-created',
+  });
+  return records as unknown as Notification[];
+}
diff --git a/002_source/cms/src/db/Notifications/GetPendingCount.tsx b/002_source/cms/src/db/Notifications/GetPendingCount.tsx
new file mode 100644
index 0000000..d6661ca
--- /dev/null
+++ b/002_source/cms/src/db/Notifications/GetPendingCount.tsx
@@ -0,0 +1,9 @@
+import { COL_CUSTOMERS } from '@/constants';
+import { pb } from '@/lib/pb';
+
+export default async function GetPendingCount(): Promise<number> {
+  const { totalItems: count } = await pb.collection(COL_CUSTOMERS).getList(1, 1, {
+    filter: 'status = "pending"',
+  });
+  return count;
+}
diff --git a/002_source/cms/src/db/Notifications/Helloworld.tsx b/002_source/cms/src/db/Notifications/Helloworld.tsx
new file mode 100644
index 0000000..2487997
--- /dev/null
+++ b/002_source/cms/src/db/Notifications/Helloworld.tsx
@@ -0,0 +1,3 @@
+export function helloCustomer() {
+  return 'Hello from Customers module!';
+}
diff --git a/002_source/cms/src/db/Notifications/Update.tsx b/002_source/cms/src/db/Notifications/Update.tsx
new file mode 100644
index 0000000..f9ef55c
--- /dev/null
+++ b/002_source/cms/src/db/Notifications/Update.tsx
@@ -0,0 +1,11 @@
+// api method for update notification record
+// RULES:
+// TBA
+import { pb } from '@/lib/pb';
+import { COL_NOTIFICATIONS } from '@/constants';
+import type { RecordModel } from 'pocketbase';
+import type { NotificationFormProps } from '@/components/dashboard/notification/type.d';
+
+export async function updateNotification(id: string, data: Partial<NotificationFormProps>): Promise<RecordModel> {
+  return pb.collection(COL_NOTIFICATIONS).update(id, data);
+}
diff --git a/002_source/cms/src/db/Notifications/_GUIDELINES.md b/002_source/cms/src/db/Notifications/_GUIDELINES.md
new file mode 100644
index 0000000..6515d08
--- /dev/null
+++ b/002_source/cms/src/db/Notifications/_GUIDELINES.md
@@ -0,0 +1,31 @@
+# GUIDELINES
+
+This folder contains drivers for `Customer`/`Customers` records using PocketBase:
+
+- create (Create.tsx)
+- read (GetById.tsx)
+- write (Update.tsx)
+- count (GetAllCount.tsx, GetActiveCount.tsx, GetBlockedCount.tsx, GetPendingCount.tsx)
+- misc (Helloworld.tsx)
+- delete (Delete.tsx)
+- list (GetAll.tsx)
+
+the `@` sign refer to `/home/logic/_wsl_workspace/001_github_ws/lettersoup-online-ws/lettersoup-online/project/002_source/cms/src`
+
+## Assumption and Requirements
+
+- assume `pb` is located in `@/lib/pb`
+- no need to handle error in this function, i'll handle it in the caller
+- type information defined in `/home/logic/_wsl_workspace/001_github_ws/lettersoup-online-ws/lettersoup-online/project/002_source/cms/src/db/Customers/type.d.tsx`
+
+simple template:
+
+```typescript
+import { pb } from '@/lib/pb';
+import { COL_CUSTOMERS } from '@/constants';
+
+export async function createCustomer(data: CreateFormProps) {
+  // ...content
+  // use direct return of pb.collection (e.g. return pb.collection(xxx))
+}
+```
diff --git a/002_source/cms/src/db/Notifications/constants.ts b/002_source/cms/src/db/Notifications/constants.ts
new file mode 100644
index 0000000..7ee4500
--- /dev/null
+++ b/002_source/cms/src/db/Notifications/constants.ts
@@ -0,0 +1,19 @@
+// Default and empty values for Notification
+
+import type { Notification } from './type';
+
+export const defaultNotification: Notification = {
+  id: '',
+  read: false,
+  type: '',
+  author: {},
+  job: {},
+  description: '',
+  NOTI_ID: '',
+  created: '',
+  updated: '',
+};
+
+export const emptyNotification: Notification = {
+  ...defaultNotification,
+};
diff --git a/002_source/cms/src/db/Notifications/type.d.ts b/002_source/cms/src/db/Notifications/type.d.ts
new file mode 100644
index 0000000..ae7910e
--- /dev/null
+++ b/002_source/cms/src/db/Notifications/type.d.ts
@@ -0,0 +1,45 @@
+'use client';
+
+export type SortDir = 'asc' | 'desc';
+
+export interface Notification {
+  id: string;
+  read: boolean;
+  type: string;
+  author: Record<string, unknown>;
+  job: Record<string, unknown>;
+  description: string;
+  NOTI_ID: string;
+  created: string;
+  updated: string;
+}
+
+export interface CreateFormProps {
+  read?: boolean;
+  type: string;
+  author: Record<string, unknown>;
+  job: Record<string, unknown>;
+  description: string;
+  NOTI_ID: string;
+}
+
+export interface EditFormProps {
+  read?: boolean;
+  type?: string;
+  author?: Record<string, unknown>;
+  job?: Record<string, unknown>;
+  description?: string;
+  NOTI_ID?: string;
+}
+
+export interface NotificationsFiltersProps {
+  filters?: Filters;
+  sortDir?: SortDir;
+  fullData: Notification[];
+}
+
+export interface Filters {
+  type?: string;
+  read?: boolean;
+  NOTI_ID?: string;
+}