Deleting Channels in Mattermost

1. Modify Configuration

First, modify the configuration as documented before you can delete channels.

https://api.mattermost.com/#tag/channels/operation/UpdateChannel

Set ServiceSettings.EnableAPIChannelDeletion to true in config.json.

2. Login and Delete Using Commands

Login command:

mmctl auth login http://localhost:8065

Then use the command to delete. Remember to concatenate the team and channel names:

mmctl channel delete m-one:test --confirm

3. References

[Solved] Error: cannot read user credentials, maybe you need to use login first

How can I delete a channel? (old but gold)