"User comments on a post or reel" trigger

How to trigger flow when user comments on a post or reel on Facebook/Instagram

Written By Ray Tang (Administrator)

Updated at June 3rd, 2026

 

ℹ️ Before you start

Connect your Facebook Page or Instagram account to SleekFlow before setting up social media triggers. Once connected, the page or account will appear in the trigger node form.

 

 

The User comments on a post or reel trigger starts a flow when someone comments on a Facebook or Instagram post/reels from the selected page or account. This can be used to engage with your audience automatically, such as replying to comments, sending follow-up messages, or adding labels to contacts for future retargeting.

Set up “User comments on a post or reel” trigger node
 

  1. Click on the User comments on a post or reel trigger node to open up its node form, which will appear on the right side of the screen

     
  2. The node form contains the following fields for you to set up the trigger:
  • Setup tab
    • Page: Select the connected Facebook Page or Instagram account you want to monitor
    • Post: Select which posts should trigger the flow
      • All posts: The workflow will trigger whenever someone comments on any post or reel from the selected page or account
      • Specific post: Select one or more posts or reels. The workflow will trigger only when someone comments on posts or reels you choose
  • Comment: Select which comments should trigger the flow
    • All comment: The workflow will trigger whenever someone comments on the selected post
    • Comments with specific keywords: The workflow will trigger only when the comment includes the keywords you define.

If you select “Comments with specific keywords”, you’ll need to set up the keyword operator rules:

  • Contains any of: The workflow will trigger when the comment contains at least one of the keywords entered. 
  • Exactly match: The workflow will trigger only when the comment contains all keywords entered.
     

Tip: Use “All posts” for general engagement automations across your social content. Use “Specific post or reel” for campaigns, product launches, contests, or limited-time promotions that require targeted follow-up.

 

 

  • Filter tab
    • Enrollment conditions: When toggled on, you can set specific conditions at the “Filter” tab that the customer must meet in order to be enrolled into the flow. For example:
      • You could trigger only if the contact have a certain label using the “Label” variable and “Contains” operator.