How to Create Basecamp Tasks from Slack Messages with Power Automate

My flows > New flow > Automated cloud flow

Create New Automated Flow

Log into make.powerautomate.com and click My flows in the left sidebar. Click New flow > Automated cloud flow from the dropdown. Name it 'Slack to Basecamp Tasks' and search for 'Slack' in the trigger list. Select 'When a reaction is added to a message' trigger since emoji reactions work better than keyword detection for this use case.

1. 1Click 'My flows' in the left navigation
2. 2Click 'New flow' button and select 'Automated cloud flow'
3. 3Enter 'Slack to Basecamp Tasks' as the flow name
4. 4Search for 'Slack' and select 'When a reaction is added to a message'
5. 5Click 'Create' to proceed

Slack Trigger > Sign in

Connect Slack Account

Click 'Sign in' on the Slack trigger. You'll be redirected to Slack's OAuth screen where you need admin permissions to install the Power Automate app. Grant access to read messages, channels, and reactions. The connection will show your workspace name once successful.

1. 1Click 'Sign in' on the Slack trigger card
2. 2Select your Slack workspace from the list
3. 3Click 'Allow' to grant Power Automate permissions
4. 4Verify the connection shows your workspace name

Slack Trigger > Parameters

Configure Reaction Trigger

Set the Channel field to the specific channel where tasks are discussed, like #client-projects. Leave Team blank to use your default workspace. For Reaction, enter 'clipboard' (the name for 📋 emoji) or 'white_check_mark' for ✅. Test the trigger by adding the emoji to a message in that channel.

1. 1Click the Channel dropdown and select your target channel
2. 2Leave Team field empty for default workspace
3. 3Enter 'clipboard' in the Reaction field
4. 4Click 'Save' to store the configuration

New step > Slack > Get message

Add Get Message Action

Click New step and search for 'Slack'. Add the 'Get message' action to retrieve the full message content that was reacted to. This gives you the message text, timestamp, and user who posted it. Use the Message Timestamp from the trigger as the input.

1. 1Click '+ New step' below the trigger
2. 2Search for 'Slack' and select 'Get message'
3. 3Set Channel to the same channel from the trigger
4. 4Click Message Timestamp field and select it from dynamic content
5. 5Save the action

New step > Basecamp > Create a to-do

Connect Basecamp Account

Click New step and search for 'Basecamp'. Select 'Create a to-do' action. You'll need to sign into your Basecamp account and grant permissions to create and modify projects. Basecamp will ask which account to connect if you have multiple.

1. 1Click '+ New step' and search for 'Basecamp'
2. 2Select 'Create a to-do' from the action list
3. 3Click 'Sign in' to authenticate
4. 4Choose your Basecamp account if prompted
5. 5Grant permissions to manage projects

Basecamp Action > Project and To-do List

Configure Basecamp Project

Set the Project dropdown to your target project where tasks should be created. Choose the specific To-do List within that project — most teams use 'Current Tasks' or 'Action Items'. You can map this dynamically later if you manage multiple projects from one Slack channel.

1. 1Click the Project dropdown and select your target project
2. 2Choose the appropriate To-do List from the dropdown
3. 3Note the project ID for reference if needed later

Basecamp Action > Task Details

Map Message Content to Task

Set the Content field (task title) to the Text from the Get message action. This uses the actual Slack message as your task name. Add a Notes field with context like 'Created from Slack message by' and include the User Display Name from the trigger. Set Due Date if your team uses deadlines.

1. 1Click in Content field and select 'Text' from Get message
2. 2Click in Notes field and type 'Created from Slack by: '
3. 3Add 'User Display Name' from the trigger after your text
4. 4Set Due Date if your workflow requires it

Basecamp Action > Assignee

Add Task Assignment Logic

Use the Assignee field to automatically assign tasks. You can set a default assignee or use expressions to assign based on the Slack channel or user who reacted. Create a condition that checks the channel name and assigns to different team members accordingly.

1. 1Click the Assignee dropdown to see available team members
2. 2Select a default assignee or leave blank for unassigned
3. 3Consider adding a condition step before this for dynamic assignment

Flow > Save > Test

Test the Complete Flow

Save your flow and go to your configured Slack channel. Post a test message like 'Update client proposal by Friday' and add the 📋 emoji reaction. Check your Basecamp project within 2-3 minutes to confirm the task was created with correct title, notes, and assignment.

1. 1Click 'Save' at the top of your flow
2. 2Go to your Slack channel and post a test message
3. 3React with the configured emoji (📋)
4. 4Check Basecamp project for the new task
5. 5Verify all fields populated correctly

Flow > Turn on

Enable Flow and Monitor

Turn on your flow using the toggle switch in the top right. Monitor the run history for the first few days to catch any failures. Common issues include permissions errors when team members from other Slack workspaces react, or Basecamp API rate limits during busy periods.

1. 1Click the toggle switch to turn the flow on
2. 2Go to 'Run history' to monitor executions
3. 3Check for any failed runs and review error messages
4. 4Adjust permissions if needed

Use Power Automate expressions to extract due dates from message text and parse channel names for dynamic project assignment. Paste this in the expression editor when configuring due dates and project selection.

// Extract due date from message text
if(
  contains(triggerBody()?['text'], 'by Friday'),

// Extract due date from message text
if(
  contains(triggerBody()?['text'], 'by Friday'),
  addDays(utcNow(), sub(5, dayOfWeek(utcNow()))),
  if(
    contains(triggerBody()?['text'], 'next week'),
    addDays(utcNow(), 7),
    null
  )
)

// Dynamic project assignment based on channel
switch(
  triggerBody()?['channel_name'],
  'client-acme', '12345678',
  'client-beta', '23456789', 
  'marketing', '34567890',
  'internal', '45678901',
  '12345678'  // default project ID
)