Product Limits
import useBaseUrl from '@docusaurus/useBaseUrl';
This page describes some of the product limits that apply to Mattermost, including hard and recommended limits.
| Feature | Hard Limit | Recommended Limit |
|---|---|---|
| Group messages | 8 participants | If 8 isn't enough, create a private channel |
| Call participants | Unlimited | 50 |
| Custom brand text | 500 | |
| Custom site description | 1024 | |
| Advanced log output | 500 MB file size, 1000 audit records | |
| Custom status | 100 characters | |
| Channel name | 64 characters | |
| Channel purpose | 250 characters | |
| Channel header | 1024 characters | |
| Bookmarked links & files | 50 | |
| Message acknowledgement response time | 5 minutes | |
| Custom user group notifications | 256 users per group | |
| Emoji reactions per message | 50 | |
| Custom emoji uploads | 6000 | |
| Team description | 50 characters | |
| SSO user session duration | 30 days | |
| Mobile user session duration | 30 days | |
| Attachments per message (files or images) | 10 | |
| Attachment file size | 100 MB | Configurable |
| Attachment image file size | 253 MB | Configurable |
| Attachment dimensions | 7680 pixels x 4320 pixels | Configurable |
| Attachment image resolution size | 33 MP (mega pixels) or 8K resolution | Configurable |
| User nickname | 64 characters | |
| Message length | 16,383 characters | |
| Teams per deployment | 10,000 | |
| Users per team | No enforced limit | Dependent on infrastructure |
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