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Tips and tricks for using Rocket.Chat

In this section, we give you some more detailed information about how you can use Rocket.Chat’s functions as effectively as possible in your everyday work.

Using a desktop or mobile client

We recommend installing a client on your PC or smartphone to use Rocket.Chat. This makes working with Rocket.Chat far easier than if you use Rocket.Chat in your browser.

To install a Rocket.Chat client, follow the instructions on the pages below:

Please also note the special instructions for staff in University Administration about not using Rocket.Chat via a Citrix browser session.

Efficient group work with Rocket.Chat

Addressing specific persons in a private group

Suppose you want to post a message to a group, but you would also like a specific person to react to it. To trigger such a reaction, you can add a mention of this person to you message. You just need to enter the first letters of the person’s username until the person concerned appears from the list of registered users.

To add such a mention, type the "@" symbol on your keyboard, followed by a few letters of the username. For example, to specifically address Maria Mustermann, whose username is mmuster2, enter: @mmu
A window with name suggestions will appear. You may use the mouse to click on one of the suggested names. Alternatively, using only the keyboard, select one of the suggested names by pressing the cursor keys (up/down) and press the tab key to confirm the name you want.

If you post a message with such a mention, the addressee’s name is highlighted. For the person concerned, their name appears against a dark-blue background. For all other recipients of the message, the name appears against a light-blue background.

Apart from highlighting a specific person, you can also indicate in your message that it concerns all team members and you hope that they will all respond. To do this, write "all" after the "@" symbol instead of a username, i.e. @all.

Organizing chats by topic

For a better overview, specific topics within a chat channel can be divided into discussion “threads”. Through this function, colleagues for whom a specific topic does not apply can focus more easily on those that concern them.

To create a thread, reply to an existing message. How to do this varies, depending on the client you are using:

  • In the desktop client, select the message to which you want to reply and click on the icon with the speech bubble and two lines ("Reply in thread") in the top right-hand corner.

  • In the mobile client, tap for a while on the message to which you want to reply and then select "Reply" in the menu that appears.

Example of how to use a thread to organize messages by topic. On the left-hand side of the window, replies appear in truncated form. If you find something particularly interesting, the whole topic can be displayed in the right-hand window. You can also enter replies to the respective topic there.

The messages within a thread are displayed in the channel in the default view in a small font size. Click on the blue button n Replies. All the chat messages related to this thread are now displayed in full length. If the blue button is already scrolled out of the window, as an alternative you can click or tap on one of the abbreviated messages of a thead to display this thread’s messages in full.

To reply in this thread:

  • In the desktop client, enter your reply in the right-hand sub-window in the "pale" area.

  • In the mobile client, enter your reply while the thread is displayed. (Tap the "Back" button if you want to reply outside this thread or in another thread.)

Via the "Bell" or the "Bell with slash" icon, you can decide whether you want to be notified of new messages in this thread or not.

Deleting messages

You can retroactively delete messages in a chat which you did not actually want to send (e.g. you sent them too soon or to the wrong person). Of course, you can only delete your own messages and not ones written by someone else.

To delete a message:

  • In the desktop client, move the cursor to the respective message and select the menu in the top right-hand corner (three vertical dots). Select the last point Delete (trash can icon).

  • In the mobile client, tap for a while on the respective message. Select the last point Delete in the menu that appears.

Alternatively, you can not only delete messages but also edit them retroactively. To do so, follow the instructions above, but instead simply select Edit in place of Delete. You can then post your edited message again. A message edited retroactively in this way is displayed in the chat with a pencil icon.

Via the menu, you can delete your own messages if you sent them by mistake – for example a message intended to be private but which went to the whole group.

Reactions to messages

You can add a reaction in the shape of an emoji to a message posted by someone else. In the desktop client, move the cursor to the message and select the icon "Smiley face with plus sign" in the top right-hand corner. In the mobile client, tap for a while on the message and select "Reactions" in the menu.

Apart from general comments, for example whether a message was witty or inappropriate, this function is a simple way to collect a group’s opinions.

Example: You suggest the following:

I could hold a presentation at our team meeting next Wednesday and give you some details. Is anyone interested?

Your colleagues can respond to your suggestion by adding emojis to signalize whether they are interested, e.g. with a "Thumbs up" or a "Thumbs down" icon. As soon as one person has clicked on such an icon, other people can click on it too if they are of the same opinion. The number of clicks on the icons is counted. In this way, the group’s opinion can be quickly gauged, particularly in the case of a simple Yes/No question.

In case you accidentally clicked on a reaction symbol, you can undo this by clicking it again.

Status is not updating — Delete cache

When using the Rocket.Chat app on a mobile device, at times it can happen that your status is not being updated anymore. In this case, newer chat messages may also not be displayed as they are written. To remedy this, tap on “Clear local server cache” to delete the message cache local to your device, as shown in the adjacent picture.


If you have any questions or problems, please contact the RRZK-Helpdesk