# Sync your contacts with your phone

> Add a CardDAV account on your iPhone or Android phone so your Office Niaga Mail contacts stay in sync both ways.
>
> Source: https://docs.officeniaga.com/contacts-mobile/

Add a CardDAV account on your phone. Your Office Niaga contacts then appear in the phone's Contacts app, and changes made on either side sync both ways.

## iPhone and iPad

1. Open **Settings**, then **Contacts**, **Accounts**, **Add Account**. On iOS 18 and later, go to **Settings**, **Apps**, **Contacts**, **Contacts Accounts**, **Add Account**.
2. Tap **Other**, then **Add CardDAV Account**.
3. Fill in:
   - **Server**: `mail.officeniaga.com`
   - **User Name**: your full email address
   - **Password**: your email password
4. Tap **Next** and wait for the iPhone to verify the account.
5. Turn on **Contacts**, then tap **Save**.

## Android

Android has no built-in CardDAV support. Use **DAVx⁵** from Google Play, the same app used in [Sync your calendar with your phone](/calendar-mobile/).

1. Open **DAVx⁵** and tap **+** to add an account.
2. Choose **Login with URL and user name**, then fill in:
   - **Base URL**: `https://mail.officeniaga.com/webdav/card`
   - **User name**: your full email address
   - **Password**: your email password
3. Tap **Create account**.
4. Open the account, tick your address book under **CardDAV**, then tap the sync button.

## Just need a one-off copy?

You do not need sync to move contacts once. See [Export your contacts](/export-contacts/) and [Import contacts](/import-contacts/).

## Common issues

### My iPhone says it cannot verify the CardDAV account. What should I check?

Check that Server is mail.officeniaga.com and User Name is your full email address. Then test your password by logging in to webmail (/log-in/).

### Contacts I added on my phone do not appear in webmail. Why?

Make sure you saved them to the Office Niaga account, not to iCloud, Google or the phone itself. On Android, open DAVx⁵ and tap the sync button, then refresh Contacts in webmail.

### DAVx⁵ created the account but shows no address book to tick. What now?

Check that Base URL is exactly https://mail.officeniaga.com/webdav/card. If it still shows nothing, contact support on WhatsApp at +60 16-916 3324 (https://wa.me/60169163324).