ActionSlackUpdated May 2026

How do I list files in a Slack workspace?

Short answer: Drop the "Slack → List Files" 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
Filter by User user	string	Optional	Slack user ID (starts with U or W). Find via List Users. Not the username or display name.
Filter by Channel channel	string	Optional	Slack channel ID (starts with C for public, G for private group, D for DM). Find via List Channels. Not the channel name with #.
File Types types	string	Optional	Comma-separated types: all, spaces, snippets, images, gdocs, zips, pdfs.
Max files count	number	Optional	Max files to return per page.

Sample request

{
  "user": "e.g. U0123456789",
  "channel": "e.g. C0123456789",
  "types": "images,pdfs",
  "count": "{{trigger.count}}"
}

Returns

{
  "ok": true,
  "raw": {},
  "count": 0,
  "files": []
}

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

Triggered by

Apps that pair well as the trigger for List Files.

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 List Files.

What does the List Files action do in Slack?

Lists files in the workspace, optionally filtered by user, channel, or type. Used for audit, DLP scans, or storage cleanup.

What inputs does List Files require?

List Files has no required inputs. Sensible defaults are applied if you leave fields blank.

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 List Files support batch operations?

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

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