> ## Documentation Index
> Fetch the complete documentation index at: https://support.deepfield-ai.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Invite participants by email

> Prepare a campaign audience, review localized messages, choose delivery and rewards, and follow invitations and reminders.

An email campaign creates a personal invitation for each selected dataset row. Prepare the [customer file](/building-your-study/data-sources) first, then open the panel in Create and select **Add email campaign**.

## Define the audience

In **Audience**, select the dataset and email column. Map the values each link should carry and choose a language column or a default language. Review invalid addresses, duplicate addresses, suppressed recipients and the usable count before continuing.

**People from another study…** copies people from a study you can access in your own workspace. Choose its file or campaign audience, including the available completion filter. The copied rows belong to this study; later edits to the source do not update them. Existing opt-outs still apply.

## Write and review the messages

In **Message**, write an invitation subject and body for each audience language. Use **Insert field** for mapped values and inspect **Preview as** for a real row. Write a reminder if reminders will be used. Check its wording separately.

Choose the displayed sender name, logo and email theme. The full-size preview shows the rendered email. **Send a test to me** sends an actual email to your account; use it when ready to review delivery.

Review **Include an unsubscribe link**. Turning it off does not remove existing opt-outs; handling objections then falls to your organization.

## Choose delivery and rewards

In **Sender**, choose DeepField delivery, an address on your verified domain, or link export for your own sending tool. An unverified domain blocks delivery. Configure replies or explicitly choose not to receive them.

In **Reward**, leave rewards off or configure the amount, currency, countries and available reward choices. Review the eligibility explanation and budget before proceeding. Test responses do not earn rewards; a reward campaign avoids inviting repeated rows for the same email address.

## Review and launch

<Steps>
  <Step title="Set timing">Review the time zone, start and end, sending pace, allowed hours and reminder delays. Automatic reminders require reminder text. The displayed ceiling also reflects organization and platform limits.</Step>
  <Step title="Check the final audience">Review the recipient count, languages, sender and message preview. Confirm **These people can be contacted for research** only after your organization has checked that condition.</Step>
  <Step title="Publish and send">Publish the study before sending live invitations, then select **Send**. For external delivery, choose **Download links**.</Step>
</Steps>

<Warning>Downloading links creates the recipients and fixes the campaign's audience: its dataset, email column and mapped attributes can no longer be changed, and the campaign cannot be deleted. Publish before sharing those links. A session opened before publication remains a test response and earns no reward.</Warning>

Use **Save and close** to retain an incomplete draft and return later.

## Follow delivery and reminders

On Fieldwork, open the campaign's recipients to distinguish sent, delivered, failed and participant outcome states. Delivery is not completion. Read the reason for recipients not reached, including opt-outs, failed addresses, contact-spacing limits or a missing file.

Use **Pause** and **Resume** to control sending. **Remind** can target eligible people who have not finished, including selected recipients. Review the actual recipient count and rendered subject in the confirmation. Sending remaining invitations reaches people not yet invited rather than restarting the whole audience.

## Check the result

Compare invited, delivered, started and completed counts. Verify one intended participant's language, mapped values and response outcome. Keep exported personal links restricted to their intended recipients.

<Frame caption="Choose the dataset, email column and recipient language before writing messages.">
  <img src="https://mintcdn.com/deepfieldai/OyLXRM2yhTT3SQYz/images/recruiting/campaign-audience.png?fit=max&auto=format&n=OyLXRM2yhTT3SQYz&q=85&s=fe051892f172076afc8cca9491b2aab1" alt="Choose the dataset, email column and recipient language before writing messages." width="990" height="460" data-path="images/recruiting/campaign-audience.png" />
</Frame>

## Related

* [Use customer files and link attributes](/building-your-study/data-sources)
* [Configure your audience](/recruiting/panels-demographics)
* [Configure consent](/recruiting/consent-forms)
* [Manage personal data](/account-settings/privacy-data)