Slot usage
1 slot
Estimated execution time
~20 seconds per 100 results
What you'll need
- A connected Slack account (use the PhantomBuster browser extension)
- Your Slack workspace URL
- A list of search terms
-
Access to the workspace where you want to search
→ See the full breakdown of all input fields in the detailed section below.
What you’ll get
- The type of result (message or file)
- The message content or the file name
- The creation timestamp
-
A download link if a file is included
→ See the full breakdown of all output fields in the detailed section below.
Step 1: Connect your Slack account
To let the Phantom act on your behalf:
- Install the PhantomBuster browser extension and connect your Slack session in one click.
- If you’re not using Chrome or Firefox, you can retrieve your session cookie manually (see our cookie guide).
- You’ll also need to provide your Slack workspace URL
Step 2: Provide your search terms
You can give your input in one of the following ways:
-
A single search term:
- Enter the single search term in the input field.
-
A URL:
- Paste the URL of a Google Sheet with your search terms, one per row (make sure it’s shared with “Anyone with the link”).
- Or upload a CSV file with your search terms (make sure it’s publicly accessible, and note that CSV upload is only available on paid plans).
→ If you’re using a spreadsheet, the Phantom defaults to the first column (A). To use a different column, enter the column’s header name in the field “Column name where "search terms" are stored in the spreadsheet.”
Step 3: Configure extraction options
-
Type of content you want to search for (optional):
Select one of the following:- All
- Messages
- Files
-
Number of searches to process per launch, max. 10 (optional):
- Default = 10.
- If left empty, the Phantom will still attempt to process a maximum of 10.
-
Number of results to extract per search (optional):
- Default = empty, the Phantom will attempt to extract all of them.
Result file settings (dropdown in setup)
-
Name your results file (optional)
-
You can customize the file name.
If you rename the file between launches, the Phantom will create a new results file and start processing inputs from scratch.
-
-
Fields to keep (optional)
- Export only the fields you care about by listing them (comma-separated).
Example: profileUrl, job, location. - This generates a second CSV file with just those fields.
- Learn more in our guide: Customize how your Phantom results files are saved.
- Export only the fields you care about by listing them (comma-separated).
Step 4: Select launch frequency
Choose how often the Phantom should run:
- Launch manually: Start the Phantom yourself whenever you need.
- Launch once at a specific time: schedule a one-time run at a set date and time.
- Launch repeatedly: schedule regular runs (e.g. once per day, several times during working hours).
- Launch after another Phantom: chain automations together so this Phantom starts right after another finishes.
- Advanced scheduling: customize the exact minutes, hours, days, or months when the Phantom should run.
→ For a complete walkthrough of scheduling options, see our guide to scheduling Phantoms automatically.
Step 5 (Optional): Advanced settings
Advanced settings are available if you want to fine-tune how your Phantom runs, but by default they’re already optimized for most use cases.
We recommend leaving them as they are unless a guide specifically instructs you to change something.
→ For a detailed overview of all advanced options (like execution limits, retries, email notifications, proxies, webhooks, and file management), see our Advanced settings guide.
Launch and results
When you’re ready:
- Click Launch to start your Phantom.
- Once it finishes, open the Results tab in the Phantom console to see extracted search results (messages, files, or activity).
- Download your results as a CSV or JSON file.
→ To learn how to export your data to Google Sheets, integrate with other tools, or reuse it in more automations, check our Access and Export your Phantom Results guide.
Export and input limits on the Free plan
If you’re on the Free plan or Free trial, some features are limited:
- CSV exports include only the first 10 rows of results.
- CSV download links (for dynamic viewing in Google Sheets or integrations) are not available.
- JSON exports are not available.
- CSV upload as an input method is not supported.
To unlock all features, you’ll need to upgrade to a paid plan.
What you give (Input) and What you get (Output)
This section gives you a detailed breakdown of everything you need to provide to run this Phantom, and everything you’ll receive once it completes.
What you give (Input)
| Type | Description |
|---|---|
| Slack cookie | Your Slack session cookie |
| Slack workspace | Your Slack workspace URL |
What you get (Output)
| Type | Description |
|---|---|
| resultType | Can be either file or message |
| name | File name |
| from | Slack user display name |
| createdAt | Created At |
| downloadUrl | URL where the file can be downloaded |
| text | Message content |
Tips and troubleshooting
Common pitfalls
- Using a private spreadsheet (make sure it’s set to “Anyone with the link”).
- Search history limits → Slack only keeps a limited message history depending on your workspace plan. Older messages may not appear in search results.
- Workspace visibility → The Phantom can only extract results that your Slack account has permission to view. Private channels or messages you don’t have access to will not appear.
- No official rate limits: Slack hasn’t published strict limits for searches, but we recommend using this Phantom moderately to avoid triggering platform checks.
If you run into issues
- Check how to troubleshoot your phantom using Logs.
- Browse the Fix Issues & Troubleshoot Errors section for solutions to common problems.
- Review our Automation Rate Limits by Platform guide.
- Check our Best Practices for Social Media Automation guide.
Suggested automations
Pair this Phantom with:
- Slack Channel User Extractor → Combine exported search results with user data for outreach.
- Slack Message Sender → Send targeted follow-ups to users based on extracted keywords or activity.