How to Use the Reply In Comments Workflow Action

By Sparkforge Support Team ·Last reviewed May 3, 2026

Reply In Comments responds to a Facebook or Instagram post comment with another comment, optionally liking it. Pair it with the matching Comments On A Post trigger.

Reply In Comments is a workflow action that posts a reply underneath a Facebook or Instagram comment after a workflow has been triggered by that comment. It can also like the comment in the same step.

When to use it

Pair this action with one of two triggers: Facebook Comment(s) On A Post or Instagram Comment(s) On A Post. Without the right trigger, the action has no comment to reply to.

Where to find it

Go to Automation > Workflow > Workflow Builder > Actions > Communication > Reply In Comments.

Components

Comments: Add up to ten replies. Sparkforge picks one at random per run. Type the reply directly or use the tag icon to pull in a custom value or output from a previous AI action.
Like Comments: Toggle on to like the original comment when replying. Toggle off to skip the like.

Tailoring replies

The action selects from your reply pool randomly — there is no per-comment mapping. To tailor responses, run an AI action upstream and feed its output into Reply In Comments, branch with If/Else, or split the logic across separate workflows with different trigger criteria.

Frequently Asked Questions

Which triggers does Reply In Comments require?

Use Facebook Comment(s) On A Post or Instagram Comment(s) On A Post so the action knows which comment to reply to.

Can the action like the comment it replies to?

Yes. Toggle Like Comments on to like the original comment in the same step.

Can I generate the reply with AI?

Yes. Run an AI action earlier in the workflow and reference its output inside the Reply In Comments fields.

Can I assign specific replies to specific comments?

No. Selection from the reply pool is random. For tailored responses, branch with If/Else, run an AI action upstream, or split into multiple workflows with different trigger criteria.

How many replies can I queue?

Up to ten replies per action.