Slack channels created using Slack API (and bot token) not showing up after posting a message to it

Question

I created several Slack channels using the Slack API and Bot Token, all necessary permissions are enabled. I am able to create the channels and send message to it successfully. Now the issue is, the channel doesn't show up automatically in the Slack channels list, but when I browse the channel manually, I can see the posted messages.

I'm using the Slack conversations.create and chat.postMessage API methods. I've also tried using conversations.list, conversations.join, conversations.open but the channel is not showing up yet.

Answer 1

After in-depth investigation with the API, I was able to show the created channels on the Channels list.

[Option 1]

• If you create the channel with conversations.create and Bot Token, you have to use User Token when calling conversations.join API method.

[Option 2]

• You may decide to use just user token and call the conversations.create and conversations.join API methods.

[Option 3]

• If you create the channel using conversations.create API method and a user token, you don't need to call conversations.join to join the channel if you have channels:read (public channel) or groups:read (private channel) permission enabled, the channel will become visible on the Slack Channels list.

Looks like only a User Token can be used to add a Slack channel to the Slack Channels list.