You can delete a specific kudos or other Matter post in Microsoft Teams, for example to remove a test kudos or inappropriate information, or to clean up a channel before rolling Matter out to your organization. A Teams admin first has to allow users to delete messages sent by bots, and then you delete the post from the message menu. A sent kudos cannot be edited, only deleted, and deleting it does not reverse the coins on it: the recipient keeps them, and an Admin can take them back by hand with Adjusting team members' coin balance if needed.
Who can use this: Teams admins and team owners on every plan, once the bot message permission is turned on. Microsoft Teams only. Using Slack? See Delete specific Matter posts and kudos in Slack.
For an overview of the whole feature, read the Kudos Guide. Related articles: Viewing kudos activity history and Kudos notifications permissions for Microsoft Teams.
Allow bot message deletion first
By default, Microsoft Teams admins and owners don't have permission to delete channel posts sent by an application or bot like Matter. You can change this in your permission policies in the Teams Admin Center (Messaging Policies) so admins can delete posts from applications or bots like Matter.
Microsoft also has an official help article on allowing users to delete bot messages in Teams.
Allow deleting bot messages in the Teams admin center
The steps depend on your permissions and your Teams admin center version.
Note: Teams admin changes can take up to 48 hours to reach every user. After that, clear the cache, sign out and back into Teams, and check in Teams on the web.
Legacy Teams admin center experience
Sign in to the Teams admin center with your admin credentials.
In the left menu, expand the Messaging section.
Select Messaging policies.
On the Messaging policies page, change the toggle to On for Users can delete messages sent by bots.
Click Save.
Change the setting for guests (legacy experience)
Sign in to the Teams admin center with your admin credentials.
In the left menu, expand the Users section.
Select Guest access.
On the Guest access page, find the Messaging section.
Change the toggle to On for Users can delete messages sent by bots.
Click Save.
New Teams admin center experience
Sign in to the Teams admin center with your admin credentials.
In the left menu, select Settings & policies.
On the Settings & policies page, choose either the Global (Org-wide default) settings tab or the Custom policies for users & groups tab.
After you choose the policy to change, select Messaging from the list of setting categories.
Change the toggle to On for Users can delete messages sent by bots.
Click Save.
Change the setting for guests (new experience)
Sign in to the Teams admin center with your admin credentials.
In the left menu, select Settings & policies.
In the External collaboration section, select Guest access.
On the Guest access settings page, find the Messaging section.
Change the toggle to On for Users can delete messages sent by bots.
Click Save.
Delete a kudos message in Teams
Find the message and hover over its upper right corner.
Click ... and then Delete.
To completely clear the message deletion text in Teams, you may need to sign out of Teams and sign back in.
To learn how kudos are posted in the first place, read Sending kudos in Microsoft Teams.
New to Matter? Matter adds kudos, birthday and work anniversary celebrations, and gift card rewards inside the Microsoft Teams channels your people already use, with a Free plan and a 14 day trial of everything. See Matter for Microsoft Teams or What is Matter?.