Campaign Links for Atlas

In Atlas, go to **Settings → Custom Attributes → People** and add a new **Text** attribute. Name it `Redsun Link`. Atlas generates a **UUID** for the attribute (e.g. `550e8400-e29b-41d4-a716-446655440000`) — this is the `attribute_id` Redsun needs. Copy it from the attribute detail page or via Atlas's API (`GET /api/v1/custom_attributes`).

In Redsun, go to **Intelligence → Settings → Campaign Link Field**. Paste the UUID into the **Field ID** box. Click Save. Redsun writes to Atlas via `POST /api/v1/people` (Atlas's upsert-by-identity endpoint), sending `custom_attributes: [{ attribute_id: <uuid>, value_string: <url> }]` for each target contact.

Atlas pulls from `GET /people`. Confirm the sync has run and your target contacts have email addresses — Redsun uses email as the identity Atlas matches against when upserting the custom attribute.

Open **Intelligence → Campaign Links**, expand a consultant, click **New campaign**: 1. Name the campaign. 2. Pick a destination. 3. Click **Launch**. For each synced Atlas contact, Redsun sends a POST to Atlas's people endpoint with just that contact's email as the identity and the tracking URL in the custom attribute. Atlas matches by email and updates in place.

Open a person in Atlas and check the `Redsun Link` custom attribute. It should hold the URL Redsun minted for them. Note: Atlas upserts by identity, so if a person's email wasn't already in Atlas, Redsun's write will *create* the person. That's fine — the contact becomes visible in Atlas straight away.

In Atlas's email composer, insert the `Redsun Link` custom attribute via the merge-field picker. Atlas's template engine substitutes the value at send time. Atlas also supports an AI-generated merge field (`{ai_field}`) for personalised CTA text. Combine them: ``` Hi {first_name}, {ai_field} [View the opportunities we discussed]({redsun_link}) ``` The exact tag for your custom attribute depends on Atlas's template syntax — check Atlas's help docs or use the field picker.

Clicks land on your tenant domain, get identified, and flow into the Known Visitors dashboard. Because Atlas also tracks email opens and clicks natively on its own side, you'll see parallel data: Atlas's open/click rates and Redsun's post-click behaviour (page views, re-engagement, intent score).