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The Deliver to section on a broadcast is where you build the target audience. You add filters, Plain resolves them into a list of Slack channels, and you can drop any channel from the list before you send. Building or changing a target requires the Support, Admin, or Owner role. Users with the Viewer role can see the resolved channel list, but they cannot change the filter.

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Add filters

See Broadcast audiences for the full detail. In short:
  • Add filters on Audience, Channel, Channel name, Tenant, Tier, or any visible Tenant field. A tenant is a customer account in Plain, a tier is the service level you put it on, and a tenant field holds your own data about it.
  • Plain resolves those filters into a list of Slack channels and shows you the channels, and the customer behind each one, as you build.
  • Uncheck any channel in that list to drop it from this broadcast only.
  • Save a filter you’ll reuse as an Audience.
The count above the channel list is how many channels receive the message, after exclusions. A broadcast with no filter at all reaches every customer with a connected channel. Plain shows the count before you send, so check it before confirming.

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Exclude individual channels

Filters describe a rule. To send to everything the rule matches except a few named channels, exclude those channels on the broadcast. In the Deliver to section, uncheck any channel in the resolved list. An excluding N pill appears next to your filters, and the count above the list drops. Two things to know:
  • Exclusions belong to the broadcast, not to the audience. Excluding a channel here never changes who the audience reaches elsewhere.
  • Unchecked channels stay visible in the list, so you can check them again.
Clear the excluding N pill to restore every channel at once.

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