n8n Slack Standup Digest with OpenAI Daily Update

Get a daily Slack standup digest—automatically formatted by OpenAI

This n8n workflow collects the last 24 hours of messages from your Slack standup channel every weekday morning, uses OpenAI (GPT-4o-mini) to turn them into a clear Shipped / Blockers / Next Up update, and posts the finished digest to a designated Slack channel—no manual copy/paste required.

What this workflow does

• Runs on a weekday schedule: executes at 09:00, Monday through Friday via a cron trigger.
• Pulls Slack standup messages: reads the message history from your specified Slack standup/source channel.
• Compiles and attributes content: combines the retrieved Slack messages into a single attributed text block and tracks the message count.
• Summarizes with OpenAI: sends the combined text to OpenAI (GPT-4o-mini) to produce a standup digest with exactly three sections:
  • Shipped
  • Blockers
  • Next Up
• Posts back to Slack: publishes the generated digest text to your configured Slack digest channel.

Use cases

• Weekly and daily leadership visibility without leaving Slack.
• Teams that run async standups and need a consistent, formatted update.
• SaaS operators and automation engineers standardizing internal reporting across channels.

Technical details

• n8n nodes / components: Schedule Trigger, Slack, Code, and an OpenAI LLM step using n8nn8n-nodes-langchainchain / n8nn8n-nodes-langchainlm (Chat OpenAI).
• Requirements: an OpenAI credential for the Chat Model and a Slack credential with permissions to read channel history and post messages.
• Configuration:
  • Replace REPLACE_WITH_SOURCE_CHANNEL_ID with your standup/source channel ID.
  • Replace REPLACE_WITH_DIGEST_CHANNEL_ID with your destination Slack digest channel ID.
  • Adjust the cron expression if you want a different run time or days.