> ## Documentation Index
> Fetch the complete documentation index at: https://cometchat-22654f5b-docs-platform-docs-release.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Leave A Group

> Leave A Group — CometChat documentation.

## Leave a Group

In order to stop receiving updates and messages for any particular joined group, you will have to leave the group using the `leaveGroup()` method.

<Tabs>
  <Tab title="Java">
    ```java theme={null}
    private String GUID = "GUID";

    CometChat.leaveGroup(GUID, new CometChat.CallbackListener<String>() {
       @Override
       public void onSuccess(String successMessage) {
          Log.d(TAG, successMessage);        
        }

       @Override
       public void onError(CometChatException e) {
          Log.d(TAG, "Group leaving failed with exception: " + e.getMessage());
        }
      });
    ```
  </Tab>

  <Tab title="Kotlin">
    ```kotlin theme={null}
    val GUID:String="GUID"

    CometChat.leaveGroup(GUID,object :CometChat.CallbackListener<String>(){
      override fun onSuccess(p0: String?) {
        Log.d(TAG, "Group left successfully")
      }
      override fun onError(p0: CometChatException?) {
        Log.d(TAG, "Group leaving failed with exception: " + p0?.message)
      }

    })
    ```
  </Tab>
</Tabs>

| Parameter | Description                                   |
| --------- | --------------------------------------------- |
| `GUID`    | The GUID of the group you would like to leave |

Once a group is left, the user will no longer receive any updates or messages pertaining to the group.

## Real-time Group Member Left Events

*In other words, as a member of a group, how do I know if someone has left it when my app is running?*

If a user leaves a group, the members of the group receive a real-time event in the `onGroupMemberLeft()` method of the `GroupListener` class.

<Tabs>
  <Tab title="Java">
    ```java theme={null}
    CometChat.addGroupListener(UNIQUE_LISTENER_ID, new CometChat.GroupListener() {
    @Override
    public void onGroupMemberLeft(Action action, User leftUser, Group leftGroup) {
    	Log.d(TAG, "User left");
    }
    });
    ```
  </Tab>
</Tabs>

## Missed Group Member Left Events

*In other words, as a member of a group, how do I know if someone has left it when my app is not running?*

When you retrieve the list of previous messages if a member has left any group that the logged-in user is a member of, the list of messages will contain an `Action` message. An `Action` message is a sub-class of `BaseMessage` class.

For the group member left event, in the `Action` object received, the following fields can help you get the relevant information-

1. `action` - `left`
2. `actionBy` - User object containing the details of the user who left the group
3. `actionFor` - Group object containing the details of the group the user has left