| | Permissions to create or set groups | | |
| A regular group is a multi-person chat group where members can communicate and collaborate in real-time. | | The group member limit depends on the Lark plan you are using. For more information, see Create a group chat. | |
| A topic group organizes communication around specific topics. Members can post, reply to, and subscribe to topics. Replies under the same topic are aggregated, and all discussions can be viewed within the topic. | | The group member limit depends on the Lark plan you are using. For more information, see Use topic groups. | |
| A meeting group is created for a specific meeting event. Members can create a discussion group containing all participants with one click via the event card, without any need for manual invitations. | All event participants can create a meeting group. | The group member limit depends on the Lark plan you are using. For more information, see Create a group chat. | |
| An external group is a group that includes non-organization members within a regular or topic group. When a non-organization member is invited, an external group is automatically created. | | | |
| A public group is a regular topic or topic group that can be discovered through keyword search in Lark. The group owner or group administrator determines the public scope of the group, enabling more members to find and join the group. | Only the group owner or group administrator can set the public group. | | |
| A department group is a group created based on the organization's department structure. Department heads can create these groups or set rules for automatic member addition in their department. | - Only department heads can create a department group.
- The department head who is also the group owner or group administrator of the group chat can set department members to automatically join the group chat.
| The group member limit depends on the Lark plan you are using. For more information, see Create a group chat. | |
| A supergroup supports a membership of over 5,000 people. The primary administrator can configure a regular group or topic group (except for external groups) as a supergroup. | Only the primary administrator of the organization can configure a supergroup. | - Available only for Lark Enterprise Premium plan.
- After configuring a regular group chat as a supergroup, the limit is 50,000 members; after configuring a topic group chat as a supergroup, the limit is 20,000 members.
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