Google Chat has the following known limitations. Read each one carefully to make sure you understand the impact to your organization before switching users to Chat.
Group conversation or space participant & reply limits
The number of participants you can have in a group conversation or in-line threaded space depends on the type of chat:
| Chat type | Description | Maximum number of participants in a space | Maximum number of replies |
|---|---|---|---|
| Group conversation | Conversation in "Chat" section with 2 or more people | 400 | n/a |
| In-line threaded space | Single conversation thread | Consumer: 8,000 Enterprise: 500,000 | 500 |
Message unique reaction limits
In Chat, a user can add a maximum of 20 unique reactions to a single message. A single message can also only contain a maximum of 50 unique reactions from multiple users.
Adding a Google Group as a member
If you're adding a Google Group as a member to set up a large space, refer to the table below for the estimated time (per number of group members) it takes to populate the space.
| Size of Google Group (# of members) | Estimated time to populate the space |
|---|---|
| ~ 100 | 10 seconds |
| ~ 1,000 | 1 minute |
| ~ 150,000 | 45 minutes |
| ~ 500,000 | 150 minutes |
Use Chat with users in other organizations
- Users in Google Workspace organizations that have not yet turned on Chat won't be reachable through Chat. Users can message any external users in organizations that have Chat turned on.
- Users can’t add external guests to group chats created in Chat.
- Essentials edition only: If your domain is not verified, users can't add coworkers outside their Essentials team to a group chat. Everyone outside the Essentials team is considered an external guest, including people in their larger organization. If the domain is verified, users can have group chats with anyone in their organization.
About voice calls
- Phone calls and text messages using Google Voice are not directly available through Chat.
- Users can switch apps to use voice.google.com to make phone calls and send or receive text messages, or download the Google Voice app on their mobile devices (Android, iOS).
- If a user hasn't already set up Voice on their Google Workspace account, your organization will need to get a Voice license for new users to sign up for Voice.
About video calls
Users can start and join meetings from 1:1 chats using Google Chat in Gmail on Android and iOS devices. Users with the Gmail app installed can also join and start audio or video calls from the mobile Chat app.
For other situations, such as group conversations and Chat on the web, the following applies:
- From Chat, users can join unscheduled online meetings through Google Meet by sharing a link to Meet.
- Users who want to join meetings from their phones should download the Meet application to their mobile devices (Android, iOS) and sign in to their Google Workspace account.
Learn about the limitations in the chat standalone app
For possible limitations, go to Use the Google Chat standalone app.
Find chat messages in Gmail inbox
For customers who adopted Chat before June 2020 with the Chat preferred service setting—All users can still see chat messages in Gmail if they use filters to send chat messages to their inbox or if they view content with the All Mail label.
Google, Google Workspace, and related marks and logos are trademarks of Google LLC. All other company and product names are trademarks of the companies with which they are associated.
