Yes, it is very easy to reply to a specific thread in Slack with an API call.
It’s the exact same API call as posting a normal message, but you just need to add the “thread_ts” parameter (i.e. thread timestamp value) to your message when you make the API call.
You can read Slack’s API documentation on this topic here:
However, this is not supported as a part of Airtable’s native automations for sending Slack messages.
To implement this, you can do one of the following:
- Use the DataFetcher.com API extension, or
- Use an automation & integration tool like Make.com, which has built-in support for this. See screenshot below: