Someone I don't know joined my group

Anyone using LINE will be able to join your group if the group invitation QR code or invite link is leaked.

If someone you don't know joins your group, you can:

• Disable the current QR code/invite link by tapping the menu icon at the top of the group chat > Invite > QR code or Invite link > Regenerate.

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If you're having issues inviting or adding friends to a group, please see all of the following sections.

Topics covered

- Situations where action is required on your device

- Situations where action is required on the invitee's device

Situations where action is required on your device:
• Another group member accidentally canceled your invitation.
It's possible that the person you invited or another group member accidentally canceled your invitation. Please try inviting the person to the group again.

• You've blocked the person.
You may have blocked the person you want to invite or add to the group. If you block someone, their display name will not appear on your friend list. Please unblock them and try adding them again.

• The maximum number of group members has been reached.
You will be unable to send new invites if the maximum number of people that can join a group has already been reached. Please either remove some group members or create a new group.

Situations where action is required on the invitee's device:
• The invitee didn't tap Join.
If the Members join automatically setting is turned off for the group chat, invitees can choose whether or not to join the group. They will only be added if they tap Join. If they tap Decline, they will not be added. Please ask the user to join the group via a message or other means.

• The invitee has already received an invitation from the group.
If the person has already been invited to the group, you can't send them another invitation. If they're listed as a pending member, please check with them regarding joining.

See also:
I get an error when creating/deleting/inviting others to groups

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Your use of the service may have been restricted due to violating (or being suspected of violating) the Terms and Conditions of Use. Below are the main standards for what constitute violations.

• Posting content that is generally considered unacceptable, such as abusive language, obscene content, or any other obscene expressions.

• Exchanging personal information (e.g. phone number, address, LINE ID), or continually inviting or soliciting others to meet in person.

• Engaging in any unlawful acts, such as the illegal trading of banned substances, stocks, etc.

• Acts of planning or inviting minors to inappropriate meetings or assemblies.

• Acts deemed to be spamming, such as sending multiple stickers or posts in a row over a short period of time.

Note: For security reasons, we do not provide details regarding the basis for what violates our Terms and Conditions of Use, or why the service has been suspended.

The temporary suspension period is between 24 hours and seven days. However, suspensions longer than seven days may be applied depending on the details of the violation.

Note: You can use the suspended feature again once the suspension period is over.

Please refer to Standards regarding posts on LINE on LINE Safety Center and take care not to engage in any activity that could result in your use being suspended in the future.

If you don't remember doing anything that could have violated the Terms of Use:

Be advised

Our response may be the same as this Help article if you still decide to contact us for further details regarding the activity that violated our Terms of Use.

If you would like us to look into the matter, please keep the important points above in mind and contact us via the Inquiry Form.

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To prevent spam messages and group invitations from people in your friend recommendations, try configuring the following settings.

Be advised

Any links in steps directing to LINE in-app screens can only be opened on your main device.

Turn on Filter messages
With the Filter messages setting, you can reject messages from people that appear in your friend recommendations. You cannot reject messages from users you've already added as friends on LINE.

To filter messages:
1. From the Home tab, tap Settings

> Privacy.
Note: Tap here to go to the Privacy screen.
2. Turn ON Filter messages.

Turn off Allow others to add me by ID
You can only use this feature on your main device (typically your smartphone).

You can prevent people from adding you as a friend with your LINE ID.

To prevent people from adding you by ID:
1. Open LINE on the main device your account is registered to.
2. From the Home tab, tap

> Profile.
Note: Tap here to go to your profile settings.
3. Turn OFF Allow others to add me by ID.

Turn off Allow others to add me
You can only use this feature on your main device (typically your smartphone).

You can prevent people from adding you based on your phone number by turning off Allow others to add me.
Note: Adding friends based on their phone numbers only applies to LINE accounts created with LINE versions earlier than 13.11.0 if you're not using LINE in Hong Kong, Japan, Korea, Taiwan, or Thailand.

If you want to add friends with the above-mentioned setting turned off, do so using the ID search option or with a QR code.

To prevent people from adding you with your phone number:
1. Open LINE on the main device your account is registered to.
2. From the Home tab, tap

> Friends.
Note: Tap here to go to Settings.
3. Turn OFF Allow others to add me.

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If the name of a friend or group appears as "Empty chat," "No members," or "Unknown," try manually syncing your data by accessing Repairing friend and group data from your smartphone and tapping Friends and groups > Repair.
Note: Do not sync your information multiple times in a row.

If the issue persists even after repairing your friend and group data, please try the troubleshooting tips.

• Change your theme to the Original theme by following the steps below:
  1. Open LINE on your smartphone.
  2. Tap the Home tab > Settings

.
3. Tap Themes > My Themes.
4. Tap Apply with only the Original theme selected.

• Make sure that there's at least 2 GB of free space on your device before repairing your friend and group data.
• Delete the chat you're having issues with and then ask a group member to send you a message.
• Leave the group and then join it again.

Be advised

Deleting a chat or leaving a group will also delete its chat history. If you want to save important chat messages, please consider asking a group member to save them in text format. Please note that chat messages saved in text format cannot be used to restore your chat history in LINE.

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Group-related issues

Group-related issues

Someone I don't know joined my group

I can't invite or add friends to a group

I get an error when creating/deleting/inviting others to groups

Preventing chat messages from people you don’t know and group invitations

The names of friends/groups appear as "Empty chat," "No members," or "Unknown"