Try these steps first

1. Mac Messages App Not Syncing Phone
2. Mac Os Messages Not Syncing
3. Macbook Messages Not Syncing
4. Iphone Messages Not Syncing With Mac
5. Mac Messages App Not Syncing Iphone

May 13, 2020  For Mac, go to System Preferences Apple ID (or iCloud) and check the box for Contacts. All of the information stored in your Mac’s Contacts app uploads to iCloud and syncs between all devices. If already checked, tick it off, wait a few minutes, and tick it back on to force a sync. Dec 21, 2017  Hi, We just switched from a provider, who offered an Exchange 2013 hosting to Office 365. I am using a Mac with 10.13.2, Outlook for Mac 15.39. I also added the account to the calendar, and i can see the exchange account in the contacts.

Make sure that iCloud Contacts, Calendars, and Reminders are available. If there's an issue, try again after it's fixed. If there isn't an issue, try these steps.

Remember to back up your contacts, calendars, and reminders, so you don't lose anything.

Important: Upgraded reminders aren't compatible with earlier versions of iOS or macOS. Shared reminders are also not accessible to users with earlier versions of iOS and macOS, until they upgrade.

After each step, see if you still need help:

1. Check for updates to your iPhone, iPad, iPod touch, Mac, or PC. To use iCloud, your devices need to meet the system requirements.
2. See if the date and time settings on your iPhone, iPad, iPod touch, Mac, or PC are correct.
3. Make sure that you're signed in to iCloud with the same Apple ID on all your devices and check your settings.
   • On your iPhone, tap Settings > [your name] > iCloud. Check your Apple ID and make sure that you turn on what you want to update (Contacts, Calendars, or Reminders).
   • On your Mac, choose Apple menu  > System Preferences, click Apple ID, then click iCloud. If you’re using macOS Mojave or earlier, choose Apple menu > System Preferences, then click iCloud. Check your Apple ID and make sure that you select what you want to update (Contacts, Calendars, or Reminders).
   • On your PC, open iCloud for Windows. Check your Apple ID and make sure that you select what you want to update (Mail, Contacts, Calendars, and Tasks).
4. If you sign in to third-party apps with your Apple ID, protect your account with two-factor authentication and use an app-specific password. If you don’t have devices that can be updated to iOS 9 or OS X El Capitan or later, you can set up two-step verification instead.
5. Open Safari and go to www.apple.com to check your connection. If you can’t open the page, get help connecting to the Internet.
6. Open a secure website, like your Apple ID account page, to see if you can access port 443. If the website won't open, contact your Internet service provider for help. Safari needs access to port 443 to update your information in iCloud.
7. Keep your data within the limits. If you go over the limit, your data won't stay up to date.

If you still need help, try the steps for your device below.

Try the steps for your device

iOS 13 and iPadOS

After each step, check your contacts, calendars, or reminders.

Refresh your contacts and calendars

To refresh your contacts, open Contacts and swipe down on the list.

To refresh your contact groups:

1. Open the Contacts app.
2. Tap Groups in the upper-left corner.
3. Swipe down on the list to refresh your groups.

To refresh your calendars:

1. Open the Calendar app.
2. Tap the Calendars tab.
3. Swipe down on the list to refresh your events.

Mac Messages App Not Syncing Phone

Set iCloud Contacts, Calendars, or Reminders as your default

If your contacts, calendars, and reminders are in iCloud, then iCloud automatically updates your information. See if your information is in iCloud or a third-party account, like Google or Yahoo. Then change your default account to iCloud. Changing your default account to iCloud will not move your existing information from a third-party service to iCloud.

To see which account your contacts are in:

1. Open the Contacts app and tap Groups in the upper-left corner.
2. Deselect the All [account] option for any third-party account, like Gmail or Yahoo.
3. Make sure All iCloud is selected.
4. Tap Done to see your list of contacts. If you don't see the contact you're looking for, it's stored in another account.
5. If you have a copy of your contacts from a third-party service in vCard format version 3.0 or later, you can import the contacts into iCloud.

Set iCloud as the default account for your contacts in iOS 8 or later:

1. Tap Settings, then Contacts.
2. Tap Default Account.
3. Select iCloud.

To see which account your calendars are in, open the Calendar app, then tap the Calendars tab.

Set an iCloud calendar as the default calendar:

1. Tap Settings, then Calendar.
2. Tap Default Calendar.
3. Tap a calendar under iCloud to make it your default.

Set an iCloud reminders list as the default list:

1. Tap Settings, then Reminders.
2. Tap Default List.
3. Tap a list under iCloud to make it your default.

Check your app settings

Make sure your iCloud Contacts and Calendars are set to appear in the Contacts or Calendars app:

• Open the Contacts app and tap Groups in the upper-left corner. Make sure that All iCloud is selected.
• Open the Calendar app and tap the Calendars tab. Make sure that all iCloud calendars are selected.

Make sure your Reminders appear:

1. Tap Settings, then [your name].
2. Tap iCloud.
3. Slide to turn on Reminders.

Change how often your calendars update:

1. Tap Settings, then Calendar.
2. Tap Sync.
3. If All Events is selected, choose a specific timeframe instead, like Events 1 Month Back. If a specific timeframe is selected, choose All Events instead.
4. Return to your Home screen.
5. Wait a few minutes, then open the Calendar app. Tap the Calendars tab, and swipe down to refresh.

Since the iCloud Birthdays calendar updates daily, you might not see changes to birthdays in the Calendars app until the next day.

Restart the Contacts, Calendar, or Reminders app

1. Close the app.
2. Return to your Home screen.
3. Wait a minute, then open the app again.

Turn off iCloud Contacts, Calendar, or Reminders and turn it back on

1. Tap Settings, [your name], then iCloud.
2. Slide to turn off Contacts, Calendars, and Reminders.*
3. If you see your calendars or reminders on iCloud.com or any of your devices, you can choose Delete from My [device]. If not, choose Keep on My [device].
4. Wait a few minutes, then turn on Contacts, Calendar, or Reminders again.

* Local reminders will be deleted from your device, but your information won't be deleted from iCloud. Once you turn Reminders back on, your reminders will be re-synced to your device.

Restart your iPhone, iPad, or iPod touch

Restart your device. Here's how to restart your iPhone, iPad, or iPod touch.

iOS 12

After each step, check your contacts, calendars, or reminders.

Refresh your contacts, calendars, and reminders

To refresh your calendars and reminders:

1. Open the Calendar app.
2. Tap the Calendars tab.
3. Swipe down on the list to refresh your events and reminders.

To refresh your contacts, open Contacts and swipe down on the list.

To refresh your contact groups:

1. Open the Contacts app.
2. Tap Groups in the upper-left corner.
3. Swipe down on the list to refresh your groups.

Set iCloud Contacts, Calendars, or Reminders as your default

If your contacts, calendars, and reminders are in iCloud, then iCloud automatically updates your information. See if your information is in iCloud or a third-party account, like Google or Yahoo. Then change your default account to iCloud.

See which account your contacts are in:

1. Open the Contacts app and tap Groups in the upper-left corner.
2. Deselect the All [account] option for any third-party account, like Gmail or Yahoo.
3. Make sure All iCloud is selected.
4. Tap Done to see your list of contacts. If you don't see the contact you're looking for, it's stored in another account.
5. You can import the contact from a third-party service into iCloud.

Set iCloud as the default account for your contacts in iOS 8 or later:

1. Tap Settings > Contacts.
2. Tap Default Account.
3. Select iCloud.

See which account your calendars are in:

1. Open the Calendar app.
2. Tap an event to open it.
3. Tap the calendar name to see if the event is in an iCloud calendar.

Set an iCloud calendar as the default calendar:

1. Tap Settings > Calendar.
2. Tap Default Calendar.
3. Tap a calendar under iCloud to make it your default.

See which account your reminders are in:

1. Open the Reminders app.
2. Tap the list name in the upper-left corner to view all your lists.
3. See if the list is stored on your device or iCloud. Open a list and tap Edit. If you see Sharing, then your list is in iCloud.

When you create a reminder, you can choose to store it in iCloud or on your iOS device.

Check your app settings

Make sure that your iCloud Contacts and Calendars are set to appear in the Contacts or Calendars app:

• Open the Contacts app and tap Groups in the upper-left corner. Make sure that All iCloud is selected.
• Open the Calendar app and tap the Calendars tab. Make sure that All iCloud is selected.

Change how often your calendars and reminders update:

1. Tap Settings > Calendar, or tap Settings > Reminders.
2. Tap Sync.
3. If All Events or All Reminders is selected, choose a specific timeframe instead, like Events or Reminders 1 Month Back. If a specific timeframe is selected, choose All Events or All Reminders instead.
4. Press the Home button.
5. Wait a few minutes. Open the Calendar app, tap the Calendars tab, and swipe down to refresh.

Since the iCloud Birthdays calendar updates daily, you might not see changes to birthdays in the Calendars app until the next day.

Restart the Contacts, Calendar, or Reminders app

1. Double-click the Home button to see your open apps.
2. Find the app, then swipe up to close it.
3. Press the Home button to return to your Home screen.
4. Wait a minute, then open the app again.

Turn off iCloud Contacts, Calendar, or Reminders and turn it back on

1. Tap Settings > [your name] > iCloud.
2. Slide to turn off Contacts, Calendars, and Reminders.*
3. If you see your calendars or reminders on iCloud.com or any of your devices, you can choose Delete from My [device]. If not, choose Keep on My [device].
4. Wait a few minutes, then turn on Contacts, Calendar, or Reminders again.

* Local reminders will be deleted from your device, but your information won't be deleted from iCloud. Once you turn Reminders back on, your reminders will be re-synced to your device.

Restart your iPhone, iPad, or iPod touch

Restart your device. Here's how to restart your iPhone, iPad, or iPod touch.

Force sync Calendar data on Apple Watch

To force sync Calendar data on your Apple Watch:

1. Open the Watch app on your iPhone and tap the My Watch tab.
2. Tap General, then tap Reset.
3. Tap Reset Sync Data.

Mac

After each step, check your contacts, calendars, or reminders.

Refresh your calendars and reminders

You can refresh your calendars and reminders from the Calendars app:

1. Open the Calendar app.
2. Choose View.
3. Refresh Calendars.

Since the iCloud Birthdays calendar updates hourly, you might not see changes to birthdays in the Contacts or Calendars app for an hour.

Check your default Calendar, Reminders, and Contacts account

If you store and edit your events in iCloud instead of another place, like On My Mac, Exchange, or Google, then iCloud automatically updates your calendars. If you use multiple accounts on your Mac like iCloud, Gmail, and Yahoo, make sure that iCloud is your default Calendar account:

1. Open the Calendar app.
2. Choose Calendar > Preferences.
3. On the General tab, make sure that one of your iCloud calendars is the default.

After you set up iCloud Reminders, you might need to quit and reopen Reminders on your Mac. Then make sure that you set up your account correctly in Reminders:

1. Open the Reminders app.
2. Choose Reminders > Accounts.
3. Click the iCloud tab and make sure that you're signed in with your Apple ID.

If you store and edit your contacts in iCloud instead of another place, like On My Mac, Exchange, or Google, then iCloud automatically updates your contacts. If you use multiple accounts on your Mac like iCloud, Gmail, and Yahoo, make sure that iCloud is your default Contacts account:

1. Open the Contacts app.
2. Choose Contacts > Accounts.
3. Click the iCloud tab and make sure that you're signed in with your Apple ID.

Turn off iCloud Calendar and iCloud Reminders, then turn it back on

1. Quit the Calendar and Reminders apps.
2. Choose Apple menu  > System Preferences, click Apple ID, then click iCloud. If you’re using macOS Mojave or earlier, choose Apple menu  > System Preferences, then click iCloud.
3. Deselect Calendars and Reminders.*
   
4. Close System Preferences and wait about a minute.
5. Choose Apple menu  > System Preferences, click Apple ID, then click iCloud. If you’re using macOS Mojave or earlier, choose Apple menu  > System Preferences, then click iCloud.
6. Select Calendars and Reminders.
   
7. Open Calendar and Reminders.
   

* Local reminders will be deleted from your device, but your information won't be deleted from iCloud. Once you turn Reminders back on, your reminders will be re-synced to your device.

Restart your computer

After you restart your computer, see if you fixed the issue.

iCloud.com

Mac Os Messages Not Syncing

If you don't see all your updates or have another issue, try these steps on iCloud.com:

1. Update your browser and clear the cache.
2. If you don't see updates from other devices, open another app on iCloud.com, like Mail. Then go back to the Contacts, Calendar, or Reminders app.
3. Sign out of iCloud.com, then sign back in.
4. Clear your browsing history. Choose History > Clear History.

Since the iCloud Birthdays calendar updates daily, you might not see changes to birthdays in the Calendars app until the next day.

If you get a spam iCloud Calendar request

If you get a calendar request that you think might be spam or junk, let us know. Sign in to iCloud.com with your Apple ID and go to the Calendar app. Open the event that you wish to mark as Junk, click Report Junk, then click OK. We'll automatically delete the event from your Calendar on all your devices signed in with the same Apple ID.

You can also go to the invitation from your iPhone, iPad, iPod touch, or Mac and choose Report Junk > Delete and Report Junk.

Microsoft Windows

After each step, check your contacts, calendars, or reminders.

Reminders are called Tasks in iCloud for Windows.

Turn off iCloud Contacts, Calendar, and Tasks, then turn it back on

1. Open iCloud for Windows.
2. Deselect Mail, Contacts, Calendars and Tasks, then click Apply.
3. Wait a few seconds, select Mail, Contacts, Calendars & Tasks, then click Apply.
4. Open Outlook.

Make sure the iCloud Outlook Add-in is active

In Outlook 2010 and later:

1. Click the File menu.
2. Click Options in the left panel.
3. Click Add-Ins in the left panel of the Outlook Options window.
4. Look at the list of add-ins in the Active Application Add-Ins section.
5. Select the iCloud Outlook Add-in.

In Outlook 2007:

1. From the Tools menu, select Trust Center.
2. Select Add-ins from the left column.
3. In the list of add-ins in the Active Application Add-Ins section, select the iCloud Outlook Add-in.

Learn how to manage Add-ins with Microsoft Outlook.

Check your default account in Outlook

• In Outlook 2010 and later, select File > Info > Account Settings > Data Files. If iCloud is the default account in the Comments column, select a different account, and click Set as Default.
• In Outlook 2007, select File > Data File Management > Data Files. If iCloud is the default account in the Comments column, select a different account, and click Set as Default.

Restart your computer

After you restart your computer, see if you fixed the issue.

If you still need help

If you still need help, contact Apple Support. You can also use these steps to remove duplicate contacts or calendars.

Several users have reported that they are unable to send and /or receive text messages and iMessages on Mac. This article explains how you can troubleshoot this issue.

See also: iMessage Won’t Send Pictures

Users report that when they attempt to send a message, they see a little red exclamation mark symbol next to my message, and they cannot resent it.

Using the Messages app on the Mac, you can easily send and/or receive SMS text messages (normal text messages) and iMessages (Apple’s messaging service).

If you are having this issue as well (not sending or not receiving), here is how you can fix it:

1- Force quit Messages app and then reopen it. To do this, choose Force Quit from the Apple menu () in the upper-left corner of your screen.And then select Messages and click Force Quit. The re-open the Messages app.

Macbook Messages Not Syncing

2- Restart your Mac. Simply click the Apple menu and select Restart.

3- Sign out and then sign back in. Open Messages, then select Messages and Preferences from the Menu bar. The click Sign out. Then open the Messages app and sign in with your Apple ID.

4- Open the Messages preferences window and select the Accounts tab (Messages > Preferences), select iMessage (left list), make sure that the checkbox “Enable this account” is checked, if not checked, check the box.

5- Make sure that your Mac is connected to the Internet. Try to load a web site to check your Internet connection. If you do not have an Internet connection, you may try some basic troubleshooting tips like restarting your Mac, Router, Wi-Fi spot etc.

6- Your problem may be because of your date and time settings. Lets resolve this. Click Apple menu > System Preferences > and then Date & Time; select the Time Zone tab and the “Set date and time automatically” checkbox, if it is already selected, unselect and wait a few seconds and reselect again. You may need to enter the admin password if the checkbox is dimmed.

Iphone Messages Not Syncing With Mac

7- On your Mac, Messages > Preferences > Accounts > iMessages Account; and on your iOS device, iPhone or iPad > Settings > Messages > Send and Receive the account should be same.

8- The issue may be because of Keychain problem. Here is how you can resolve this issue:

• Launch Keychain Access (Launchpad > Keychain Access) then click File and Lock Keychain “Login” and then again go to File > Unlock Keychain “Login”, enter your admin password when you are asked. This will rebuild your Keychain Access which may fix this problem.

If you are still having this problem, please contact Apple support.

Mac Messages App Not Syncing Iphone

See also: Change Mac Screenshot Locations