ActionSlackUpdated May 2026

How do I edit an existing Slack message?

Short answer: Drop the "Slack → Update Message" action anywhere in your workflow, map the inputs from upstream nodes, and publish.

Use this action All 45 Slack 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
Channel channel	string	Required	Slack channel ID (starts with C for public, G for private group, D for DM). Find via List Channels. Not the channel name with #.
Message Timestamp ts	string	Required	Message timestamp identifier — the unique 'ts' string returned by Slack when a message is posted (epoch.seq format). Find via Get Channel History.
New Text text	string	Required	Message text to post. Supports Slack mrkdwn (e.g. bold, <@U123> mentions, <#C123> channel links).

Sample request

{
  "channel": "C1234567890",
  "ts": "1234567890.123456",
  "text": "e.g. Hello team :wave:"
}

Returns

{
  "ok": true,
  "ts": "1234567890.123456",
  "text": "Updated text",
  "channel": "C1234567890"
}

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

Triggered by

Apps that pair well as the trigger for Update Message.

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

Gmail → Slack

1 Gmail triggers

Google Sheets → Slack

2 Google Sheets triggers

FAQ

Questions about Update Message.

What does the Update Message action do in Slack?

Edits an existing Slack message by channel + timestamp. Used to keep status messages or live tallies current without spamming the channel.

What inputs does Update Message require?

Required: Channel, Message Timestamp, New 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 Slack 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 Update Message support batch operations?

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

More actions