# SMS Blasts

SMS blasts send text messages to selected candidates.

## How SMS Blasts Work

1. **Message**: Enter up to 2000 characters
2. **Template variables**: Use {{candidate\_name}} for personalization
3. **Recipients**: System sends to candidates with phone numbers from previous SMS engagement
4. **Filtering**: Option to only send to candidates who haven't completed interviews and aren't knocked out

## Rate Limiting

SMS messages are rate limited to **once per hour per candidate**. This prevents spam and maintains professional communication.

* If you attempt to text a candidate who received an SMS in the last hour, they will be automatically skipped
* The system tracks this automatically - you don't need to manage it manually
* Skipped candidates will show "rate\_limited" as the reason in your blast results

## Requirements

* Phone numbers from candidates who've previously engaged via SMS
* Message text (required, 2000 character limit)
* SMS provisioning - your account must have a provisioned phone number

## Template Variables

You can personalize messages using:

* `{{candidate_name}}` - Inserts the candidate's name

## Technical Details

* Only candidates with SMS history can receive SMS blasts
* Invalid phone numbers are automatically skipped
* System tracks delivery status for each candidate

## Viewing SMS Blast Results

After sending, you can view:

* **Total selected**: Number of candidates you chose
* **Eligible**: Candidates who met the filtering criteria and have SMS history
* **Enqueued**: Successfully sent messages
* **Skipped**: Candidates who were filtered out (with reasons)

Access blast history from your job posting's Actions dropdown → Blast Requests.


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