Skip to main content
Use this page if Auto-Bidding shows app is not in this channel or Slack delivery fails with not_in_channel.
This guide applies only to Auto-Bidding Slack approval messages. For regular Slack notifications, use the Slack notifications guide.

​
Requirements

You need:
  • a connected Slack workspace in Auto-Bidding settings
  • permission to invite apps to the target Slack channel
  • an existing member to invite @vollna_bot if the channel is private

​
Setup

​
1. Connect Slack

Connect your Slack workspace in Auto-Bidding settings. When Slack opens the authorization screen, review the workspace and click Allow.
Slack authorization screen for connecting Vollna to a workspace

​
2. Select the channel

Choose the channel where approval messages should be sent. After Slack is connected, return to Auto-Bidding settings and choose the target channel in the Slack section.
Auto-Bidding Slack settings showing the connected workspace and channel selector
If the app is not yet in the selected channel, Auto-Bidding shows a warning like this:
Auto-Bidding Slack warning showing that the app is not in the selected channel

​
3. Add the Vollna app to the channel

In Slack, open the same channel and run: 
/invite @vollna_bot
For private channels, the invite must be sent by someone who is already a member of that private channel.

​
4. Click Check again

Return to Auto-Bidding settings and click Check again. If the app is in the channel, the warning disappears and delivery is ready.

​
Public vs Private Channels

  • Public channels can appear in Auto-Bidding even if @vollna_bot has not been added yet.
  • Private channels require the app to be invited before Auto-Bidding can post.
Connecting a Slack workspace and adding the app to a channel are separate steps. Selecting a channel in Vollna does not automatically add @vollna_bot to that channel.

​
Why This Happens

Slack can let Vollna list a channel before the app is actually a member of it. When Auto-Bidding tries to post into a channel that does not include @vollna_bot, Slack returns not_in_channel.

​
Troubleshooting

​
The channel is selected, but Vollna still shows the warning

Check all of the following:
  1. @vollna_bot appears in the channel member list
  2. you invited the app to the same channel selected in Auto-Bidding
  3. you clicked Check again after inviting the app

​
I invited the app, but the warning is still shown

Try this:
  1. wait a few seconds for Slack to update channel membership
  2. click Check again again
  3. reconnect Slack if the wrong workspace was connected

​
I want to use a private channel

Private channels only work after @vollna_bot is invited by someone who is already a member of that private channel. If the private channel is not working, confirm:
  1. you are selecting the correct Slack workspace
  2. @vollna_bot has been invited to the private channel
  3. the invite was done by an existing member of that private channel