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---
title: "Product limits"
---
<PlanAvailability slug="all-commercial" />
This page describes some of the product limits that apply to Mattermost, including hard and recommended limits.
<table>
<thead>
<tr>
<th>Feature</th>
<th>Hard Limit</th>
<th>Recommended Limit</th>
</tr>
</thead>
<tbody>
<tr>
<td><a href="/end-user-guide/collaborate/create-channels">Group messages</a></td>
<td>8 participants</td>
<td>If 8 isn't enough, create a private channel</td>
</tr>
<tr>
<td><a href="/end-user-guide/collaborate/make-calls">Call participants</a></td>
<td>Unlimited</td>
<td>50</td>
</tr>
<tr>
<td><a href="/administration-guide/configure/custom-branding-tools#custom-brand-text">Custom brand text</a></td>
<td>500</td>
<td></td>
</tr>
<tr>
<td><a href="/administration-guide/configure/custom-branding-tools#site-description">Custom site description</a></td>
<td>1024</td>
<td></td>
</tr>
<tr>
<td><a href="/administration-guide/manage/logging#advanced-logging">Advanced log output</a></td>
<td>500 MB file size, 1000 audit records</td>
<td></td>
</tr>
<tr>
<td><a href="/end-user-guide/preferences/set-your-status-availability#set-a-custom-status">Custom status</a></td>
<td>100 characters</td>
<td></td>
</tr>
<tr>
<td><a href="/end-user-guide/collaborate/channel-header-purpose#channel-name">Channel name</a></td>
<td>64 characters</td>
<td></td>
</tr>
<tr>
<td><a href="/end-user-guide/collaborate/channel-header-purpose#channel-purpose">Channel purpose</a></td>
<td>250 characters</td>
<td></td>
</tr>
<tr>
<td><a href="/end-user-guide/collaborate/channel-header-purpose#channel-header">Channel header</a></td>
<td>1024 characters</td>
<td></td>
</tr>
<tr>
<td><a href="/end-user-guide/collaborate/manage-channel-bookmarks">Bookmarked links &amp; files</a></td>
<td>50</td>
<td></td>
</tr>
<tr>
<td><a href="/end-user-guide/collaborate/message-priority#request-acknowledgements">Message acknowledgement</a> response time</td>
<td>5 minutes</td>
<td></td>
</tr>
<tr>
<td><a href="/end-user-guide/collaborate/organize-using-custom-user-groups">Custom user group</a> notifications</td>
<td>256 users per group</td>
<td></td>
</tr>
<tr>
<td><a href="/end-user-guide/collaborate/react-with-emojis-gifs#quick-emoji-reactions">Emoji reactions</a> per message</td>
<td>50</td>
<td></td>
</tr>
<tr>
<td><a href="/end-user-guide/collaborate/react-with-emojis-gifs#upload-custom-emojis">Custom emoji uploads</a></td>
<td>6000</td>
<td></td>
</tr>
<tr>
<td><a href="/end-user-guide/collaborate/team-settings#team-description">Team description</a></td>
<td>50 characters</td>
<td></td>
</tr>
<tr>
<td><a href="/administration-guide/configure/environment-configuration-settings#session-length-for-sso">SSO user session duration</a></td>
<td>30 days</td>
<td></td>
</tr>
<tr>
<td><a href="/administration-guide/configure/environment-configuration-settings#session-length-for-mobile">Mobile user session duration</a></td>
<td>30 days</td>
<td></td>
</tr>
<tr>
<td><a href="/end-user-guide/collaborate/share-files-in-messages">Attachments per message</a> (files or images)</td>
<td>10</td>
<td></td>
</tr>
<tr>
<td><a href="/end-user-guide/collaborate/share-files-in-messages#attachment-limits-and-sizes">Attachment file size</a></td>
<td>100 MB</td>
<td>Configurable</td>
</tr>
<tr>
<td><a href="/end-user-guide/collaborate/share-files-in-messages#attachment-limits-and-sizes">Attachment image file size</a></td>
<td>253 MB</td>
<td>Configurable</td>
</tr>
<tr>
<td><a href="/end-user-guide/collaborate/share-files-in-messages#attachment-limits-and-sizes">Attachment dimensions</a></td>
<td>7680 pixels x 4320 pixels</td>
<td>Configurable</td>
</tr>
<tr>
<td><a href="/end-user-guide/collaborate/share-files-in-messages#attachment-limits-and-sizes">Attachment image resolution size</a></td>
<td>33 MP (mega pixels) or 8K resolution</td>
<td>Configurable</td>
</tr>
<tr>
<td><a href="/end-user-guide/preferences/manage-your-profile">User nickname</a></td>
<td>64 characters</td>
<td></td>
</tr>
<tr>
<td><a href="/end-user-guide/collaborate/send-messages">Message length</a></td>
<td>16,383 characters</td>
<td></td>
</tr>
<tr>
<td><a href="/end-user-guide/collaborate/organize-using-teams#create-a-team">Teams per deployment</a></td>
<td>10,000</td>
<td></td>
</tr>
<tr>
<td><a href="/end-user-guide/collaborate/invite-people">Users per team</a></td>
<td>No enforced limit</td>
<td>Dependent on infrastructure</td>
</tr>
</tbody>
</table>
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