What this integration does
The Allo-Google Contacts integration keeps your contacts in sync automatically. Changes in either system update the other in real-time. Perfect for users who want their phone contacts and Allo contacts always matched. Key benefits:- Two-way contact sync
- Automatic updates in both directions
- Phone number matching
- Contact photo sync
Setup
1
Open Allo app
Launch Allo mobile app
2
Go to Settings
Navigate to Settings in bottom navigation
3
Select Contacts
Tap Contacts
4
Enable Google Contacts sync
Turn on the toggle for Google Contacts
5
Authorize access
You’ll be redirected to Google. Select your Google account and authorize Allo to access your contacts.
6
Confirm sync
Return to Allo and wait for initial sync to complete
Initial sync can take 1-5 minutes depending on how many contacts you have. New contacts sync in real-time after setup.
How it works
Google to Allo
All Google contacts import into Allo automatically with names and numbers.
Allo to Google
New contacts created in Allo sync back to Google Contacts instantly.
Two-way sync
Google Contacts to Allo:- Contact names
- Phone numbers
- Email addresses
- Contact photos
- Notes
- Contact names
- Phone numbers
- Email addresses
- Notes added in Allo
Changes in either system sync within seconds.
Duplicate handling
If a contact exists in both systems with the same phone number:- Allo merges the information
- The most complete data is kept
- No duplicate contacts are created
What syncs
- Google to Allo
- Allo to Google
From Google Contacts to Allo:
- Contact names (first and last)
- Phone numbers (all numbers)
- Email addresses
- Company name
- Job title
- Contact photo
- Notes
- Birthday
Contact matching
Contacts are matched using these methods:- Phone number (primary method)
- Email address (secondary method)
- Exact name match (tertiary method)
Troubleshooting
Authorization failed
Authorization failed
Contacts not syncing
Contacts not syncing
Check these items:
- Integration shows as “Connected” in Settings
- You granted contacts permission to Allo
- Your Google account is active
- You have internet connection
Duplicate contacts appearing
Duplicate contacts appearing
Why this happens: If phone numbers are formatted differently (with or without country code), Allo may not recognize them as the same contact.Solution: Manually merge duplicates in Google Contacts, then wait for sync to complete.
Missing contact information
Missing contact information
Check data in both systems:
- Verify the contact exists in Google Contacts
- Ensure the phone number format is consistent
- Check that contact isn’t in Google’s “Other Contacts”
Photos not syncing
Photos not syncing
From Google to Allo:
Photos sync automatically if they exist in Google Contacts.From Allo to Google:
Photos added in Allo don’t sync back to Google Contacts. This is a Google API limitation.
Photos sync automatically if they exist in Google Contacts.From Allo to Google:
Photos added in Allo don’t sync back to Google Contacts. This is a Google API limitation.
Need to reconnect
Need to reconnect
To reconnect the integration:
- Go to Settings > Contacts
- Turn off Google Contacts toggle
- Turn it back on
- Reauthorize access to Google
Manage your integration
Disconnect Google Contacts
To disconnect the integration:- Open Allo app
- Go to Settings > Contacts
- Turn off the Google Contacts toggle
- Confirm disconnection
Selective sync
Currently, Allo syncs all Google contacts. There’s no option to sync only specific contact groups. Workaround:Create a separate Google account for business contacts and sync only that account with Allo.
Revoke access
To completely revoke Allo’s access to Google Contacts:- Go to Google Account permissions
- Find “Allo” in the list
- Click Remove access