ActionRedditUpdated May 2026

How do I post a Reddit comment?

Short answer: Drop the "Reddit → Reddit Add Comment" action anywhere in your workflow, map the inputs from upstream nodes, and publish.

Use this action All 5 Reddit actions

Inputs

The fields this action accepts.

Every field can be mapped from an upstream trigger, AI step, table row, or hard-coded literal.

Field	Type	Required	Description
Parent ID (t3_xxx for post, t1_xxx for comment) thing_id	string	Required	—
Comment Text text	string	Required	—

Sample request

{
  "thing_id": "{{trigger.thing_id}}",
  "text": "{{trigger.text}}"
}

Returns

{
  "json": {
    "data": {
      "things": [
        {
          "data": {
            "id": "cmm_abc",
            "body": "Reply text",
            "name": "t1_cmm_abc",
            "permalink": "/r/test/comments/.../"
          }
        }
      ]
    }
  }
}

Use these fields in downstream nodes for routing, logging, or error handling.

Triggered by

Apps that pair well as the trigger for Reddit Add Comment.

Any of these apps can fire this action as part of a workflow.

Google Sheets → Reddit

2 Google Sheets triggers

HubSpot → Reddit

18 HubSpot triggers

FAQ

Questions about Reddit Add Comment.

What does the Reddit Add Comment action do in Reddit?

Posts a comment on a post or another comment. For community-engagement workflows (auto-thank-you for mentions) or for moderator-tool automation.

What inputs does Reddit Add Comment require?

Required: Parent ID (t3_xxx for post, t1_xxx for comment), Comment Text. Every input accepts a static value or a variable from any upstream node in your workflow.

Can I use dynamic inputs from earlier workflow nodes?

Yes. Any field on this action can pull values from upstream nodes, whether that's a form response, a trigger payload, an AI output, or a lookup result.

What happens if Reddit returns an error?

The workflow pauses on the failed node, the error message is captured in the run log, and you can retry the run with one click. Auto-retry policies are configurable per workflow with exponential backoff up to 5 attempts.

Does Reddit Add Comment support batch operations?

Yes. Run Reddit Add Comment inside a Loop node to process arrays. Tiny Command handles Reddit's rate limits automatically so you don't have to throttle manually.

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