With each update of the operating system Android not only the visual style changes, but also the logic of the basic applications. Users who have upgraded to version 8.0 Oreo or 8.1 often encounter a situation where full namesakes or entries with different numbers for the same person appear in the phone book. This is not just visual noise, but a real problem of data organization.
Google developers have introduced powerful synchronization algorithms into the G8, which sometimes work too aggressively, creating copies of records when transferring data from an old device. However, the system also provides effective tools for restoring order. In this material, we will analyze in detail the record merging mechanisms available in this particular version of the OS, and will help you clear the call list of garbage.
The cleaning process can take from five minutes to half an hour, depending on the size of your address book. It is important to understand that merging contacts on Android 8 occurs without a trace - old entries are deleted, combining into one new card with complete information. Therefore, before proceeding with a mass merger, you should make sure that the selected data is correct.
Reasons for the appearance of duplicates in the phone book
The phenomenon of duplicate entries in Android 8 is most often associated with the features of account synchronization. When you log into a new profile Google or restore data from a backup, the system may interpret the same entry as new if the number formats or names are written with minor differences.
Another common reason is the use of multiple storage sources at the same time. For example, some contacts are saved in the SIM card memory, some in the phone’s local storage, and the rest are synchronized with the cloud. Contact from different sources are not always automatically combined by the system, creating the appearance of chaos in the list of subscribers.
⚠️ Attention: Before starting mass merging, make sure that you have access to the Internet. The process of synchronizing changes with Google servers requires a stable connection, otherwise data may become out of sync between devices.
It is also worth considering the human factor. When manually entering numbers, users often forget to check an existing list when creating a second entry for someone they already know. This problem is compounded by the fact that the default Contacts app may hide duplicates in some views until you start searching for a specific caller. Android Oreo This problem is compounded by the fact that the default Contacts app may hide duplicates in some viewing modes until you start searching for a specific caller.
Using the built-in merging function in Android 8
In operating system version 8.0 and higher, Google engineers implemented a smart hint system. The smartphone independently analyzes the database and offers to combine records that it considers identical. This is the fastest way to restore order without third-party software.
To start this process, open the standard application Contact. Depending on the manufacturer's shell (for example MIUI, EMUI or pure Android One), the interface may differ, but the logic remains the same. Usually you need to click on the menu button (three dots or three bars) in the upper corner of the screen.
In the list that opens, select the item Manage contacts or Settings. The system will offer the option Merge duplicates. By clicking on it, you will see a list of pairs or groups of records that the algorithm considered identical. All you have to do is confirm the action with the button Merge.
☑️ Algorithm for checking duplicates
If the automatic search did not return any results, this does not mean that there are no duplicates. Algorithms may miss entries where names are spelled differently (for example, “Alexey” and “Lesha”). In such cases, you will need to manually check or use more advanced web interface tools.
If you have a custom shell installed from the manufacturer, finding the merge function may be different. Try using the search bar in your phone settings by entering the query “duplicates” or “merge.”
Clearing contacts through the Google web interface
The most reliable and functional way to manage your address book is to use a browser on your computer. The web version of the service Google Contacts provides tools that are often missing or hidden in the mobile application.
To get started, go to the website contacts.google.com and log in with the same account that is used on your smartphone with Android 8. The interface here is more visual, and the speed of working with a large list of names is much higher than when tapping on the touch screen.
In the menu on the left, find the section Merge and fix. The system will automatically scan the database and show the number of duplicates found. You can combine them one by one or use the button Merge allto perform the operation in batches in one second.
| Action | Mobile application | Google web interface | Third-party utilities |
|---|---|---|---|
| Automatic search | Limited | Full | Depends on the application |
| Batch merge | Partially | Yes | Yes |
| Recovery of deleted items | No | Up to 30 days | Rarely |
| Editing fields | Convenient | Very convenient | Various |
After completing the operation on the site, changes are automatically synchronized with your phone. Make sure contact synchronization is enabled on your device in your account settings. Typically, updating the list takes from a few seconds to a couple of minutes depending on the speed of the Internet.
The Google Contacts web interface is the safest method, as it creates a backup copy before merging and allows you to roll back changes in case of an error.
Manually merging specific entries
Sometimes automatic systems make mistakes or misses obvious repetitions, especially if the names are written in transliteration and Cyrillic at the same time. In such situations, Android 8 you have to resort to the manual merging method.
Open the card of one of the duplicate contacts. Click on the edit icon (pencil). An icon in the form of two arrows or a chain often appears in the upper corner of the screen, which means Link contact. By clicking on it, you can select a second entry from the list that you want to attach to the current one.
After selecting the second entry, all fields (phone numbers, addresses, birthdays) will be combined in one card. The old entry will disappear from the general list, but the information from it will be retained. This allows you to create a complete profile of a person with all possible methods of communication.
⚠️ Attention: When manually linking, carefully check the fields. If both entries contain Home Number, the system may leave only one of them or create a field conflict. It is better to remove unnecessary duplicate fields manually in advance.
This method takes more time, but gives full control over the result. You decide which name will be the main one and which phone number will be first in the list of priorities when calling.
Working with importing and exporting VCF files
Often the problem of duplicates arises after importing files .vcfreceived from friends or from old phones. B Android 8 the import process may create new records instead of updating existing ones if the matching criteria do not work.
Before importing a file, it is recommended to open it on your computer in a text editor or specialized app and check the contents. If you see obvious repetitions, remove them from the file before downloading to your phone. This will save time on subsequent cleaning.
If duplicates have already been created, you can try exporting all contacts to a file .vcf, clearing the phone book completely, and then importing the file back using the merge-on-import feature (if available in your version of the application). However, this method is risky and requires the creation of a backup.
What is a VCF file?
vCard Format (VCF) is a standard file format for electronic business cards. It contains information about the contact's name, phone number, address and other details. Almost all email clients and phone books support this format for data exchange.
Remember that when importing from a SIM card, contacts often lack additional fields such as email or photo. After merging such records with cloud contacts, information may be supplemented, but priority always remains with the record that you select as the main one.
Restoring contacts after an unsuccessful merge
The human factor has not been canceled: you could accidentally merge different people with the same names or delete important information during the cleaning process. In Android 8 the Google ecosystem provides the “Undo Changes” function.
Return to the web interface contacts.google.com. In the menu on the left, select Settings (gear), and then click Cancel changes. The system will prompt you to select a time period: 10 minutes ago, 1 hour, yesterday or a week ago.
Having selected the desired period, confirm the action. All contacts will return to the state they were in before the specified time. This is a unique feature that many other services do not have, and it makes working with cloud synchronization as secure as possible.
⚠️ Attention: The undo changes feature is only available for 30 days. If you notice an error in merging contacts after a month, it will be impossible to restore the original appearance of the database through standard Google tools.
After rolling back changes on the server, do not forget to forcefully update the synchronization on your smartphone. Go to Settings → Accounts → Google, select your profile and click Synchronize opposite the "Contacts" item.
Regularly export contacts to a .vcf file and save it on your computer or in a cloud storage other than Google Drive. This will create an independent backup that can be restored even if there are problems with your account.
Frequently asked questions (FAQ)
Is it safe to use third-party applications to clean contacts?
Using third-party applications from Google Play carries certain risks. Such apps often require full access to your address book and may transmit data to their servers for analysis. Android 8's built-in tools and Google's web interface are a safer choice because data doesn't leave the secure ecosystem of your account.
What happens to your call history after merging contacts?
Call history is tied to the phone number, not the name in your address book. After merging two entries with different numbers, both numbers will appear in the call log, but they will be signed by one common name, which you left after merging. The call records themselves are not deleted.
Why do duplicates appear again on the phone after merging?
This may occur due to desynchronization. If you have multiple accounts connected (for example, work and personal) or if contacts are duplicated from the SIM card every time you reboot, the system may pull up old entries again. Check your contact display settings and disable synchronization for unnecessary sources.
Is it possible to merge contacts from different SIM cards?
It is not possible to directly merge records that are physically located on different SIM cards. First, you need to copy contacts from both cards to your phone memory or Google account. Only after all the numbers are in the same digital space, the Android 8 system will be able to offer to merge them.