Here is much technical discription:
I usually architect it like this:
Input: Use a Slack Slash Command (e.g., /lookup) connected to a Make scenario. It feels cleaner than having them paste into a channel.
Processing: Webhook that data into Clay, run your waterfall.
Output: Use the HTTP API or Slack integration to return the enriched fields (Email, Mobile, LinkedIn) right back to the user.
Pro-tip: Capture the Slack User ID in the initial webhook so you can tag them (<@userID>) in the reply—otherwise, they might miss the notification when the enrichment finishes.