# End User Help **URL:** https://forum.mattermost.com/c/faq/help/19.md [Latest](https://forum.mattermost.com/latest.md) · [Categories](https://forum.mattermost.com/categories.md) --- ## [Where can I find help on Mattermost?](https://forum.mattermost.com/t/where-can-i-find-help-on-mattermost/277)
**Author:** [@it33](https://forum.mattermost.com/u/it33)\ **Replies:** 0
This is a discussion forum used to develop end user help documentation for Mattermost end users. If you have a question on how to use Mattermost, please share it here to be answered by community members. Over time, ar… --- ## [How to know when others react with emoji](https://forum.mattermost.com/t/how-to-know-when-others-react-with-emoji/26131)
**Author:** [@wxue1011](https://forum.mattermost.com/u/wxue1011)\ **Replies:** 1\ **Last updated:** [September 15, 2026, 9:28pm UTC](https://forum.mattermost.com/t/how-to-know-when-others-react-with-emoji/26131 "2026-09-15T21:28:36Z")
Hi, I am swithed Microsoft teams to mattermost, now i hava a confusion。 How to know when others react with emoji in mattermost. --- ## [Do we need to stop the mattermost service prior to exporting data?](https://forum.mattermost.com/t/do-we-need-to-stop-the-mattermost-service-prior-to-exporting-data/25212)
**Author:** [@ashim](https://forum.mattermost.com/u/ashim)\ **Replies:** 3\ **Last updated:** [October 2, 2025, 7:23am UTC](https://forum.mattermost.com/t/do-we-need-to-stop-the-mattermost-service-prior-to-exporting-data/25212 "2025-10-02T07:23:25Z")
Dear all, I am reading this page: I wish to do: sudo -u mattermost bin/mattermost export bulk file.json --all-teams --attachments OR: sudo mmctl export create --attachments My query is : Can I do either of the ab… --- ## [Finding Messages with the most emoji reactions](https://forum.mattermost.com/t/finding-messages-with-the-most-emoji-reactions/19649)
**Author:** [@samucaesar](https://forum.mattermost.com/u/samucaesar)\ **Replies:** 3\ **Last updated:** [September 22, 2024, 12:31pm UTC](https://forum.mattermost.com/t/finding-messages-with-the-most-emoji-reactions/19649 "2024-09-22T12:31:05Z")
Hi! My project has been using Mattermost for years. I now want to create a quiz for a community day. One quiz question should be: “Which message has received the most emoji reactions in the history of the project?”. Is… --- ## [How can I delete a channel? (old but gold)](https://forum.mattermost.com/t/how-can-i-delete-a-channel-old-but-gold/16201)
**Author:** [@Darkland](https://forum.mattermost.com/u/Darkland)\ **Replies:** 6\ **Last updated:** [June 30, 2023, 6:16am UTC](https://forum.mattermost.com/t/how-can-i-delete-a-channel-old-but-gold/16201 "2023-06-30T06:16:32Z")
I guess it has been asked many times. I couldn’t find a solution even though I browsed many of them on the forum. Although I researched in detail, I could not figure out how to delete the created channel? Shouldn’t this … --- ## [What does the /me command actually do?](https://forum.mattermost.com/t/what-does-the-me-command-actually-do/10610)
**Author:** [@Kees\_C](https://forum.mattermost.com/u/Kees_C)\ **Replies:** 1\ **Last updated:** [October 23, 2020, 2:00pm UTC](https://forum.mattermost.com/t/what-does-the-me-command-actually-do/10610 "2020-10-23T14:00:04Z")
Typical novice question (I think), but what does /me actually do? All I’ve found so far is “Do an action”, but what does that really mean? --- ## [How To Unsubscribe From Mattermost TestFlight](https://forum.mattermost.com/t/how-to-unsubscribe-from-mattermost-testflight/7501)
**Author:** [@ahmaddanial](https://forum.mattermost.com/u/ahmaddanial)\ **Replies:** 1\ **Last updated:** [August 7, 2019, 4:15am UTC](https://forum.mattermost.com/t/how-to-unsubscribe-from-mattermost-testflight/7501 "2019-08-07T04:15:48Z")
Purpose Users who originally joined the Mattermost TestFlight would like to unsubscribe from the service. Solution Navigate to the App Store and open up Mattermost Beta Tap on Stop Testing to remove yourself from… --- ## [Windows App: Can´t open Picture from yesterday](https://forum.mattermost.com/t/windows-app-can-t-open-picture-from-yesterday/1738)
**Author:** [@Knorkator](https://forum.mattermost.com/u/Knorkator)\ **Replies:** 1\ **Last updated:** [June 26, 2016, 7:02pm UTC](https://forum.mattermost.com/t/windows-app-can-t-open-picture-from-yesterday/1738 "2016-06-26T19:02:44Z")
Hello, we´re just testing mattermost. Yesterday, i added a picture in a private chat - just for testing the app. Today, this picture is not loading in the Windows Applikation. The Client in the Internet Explorer displ… --- ## [Clean channel history](https://forum.mattermost.com/t/clean-channel-history/819)
**Author:** [@Olivier](https://forum.mattermost.com/u/Olivier)\ **Replies:** 1\ **Last updated:** [February 10, 2016, 4:57pm UTC](https://forum.mattermost.com/t/clean-channel-history/819 "2016-02-10T16:57:25Z")
Hi! Since I now understand the "Town square" topic, I created private channels. Good. But now I would like to clean the history of "Town square" (to welcome external people without having the whole previous history).… --- ## [Mattermost feature explanation](https://forum.mattermost.com/t/mattermost-feature-explanation/701)
**Author:** [@auzty](https://forum.mattermost.com/u/auzty)\ **Replies:** 2\ **Last updated:** [December 29, 2015, 4:51am UTC](https://forum.mattermost.com/t/mattermost-feature-explanation/701 "2015-12-29T04:51:15Z")
maybe this is a funny questions, i really new in this mattermost and im not IT heavy. I am have a task to test the mattermost application, what is "TEAM" mean? what is "channel" mean? are both different? , first when w…