> For the complete documentation index, see [llms.txt](https://assetstore.essentialkit.voxelbusters.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://assetstore.essentialkit.voxelbusters.com/features/deep-link-services/playmaker/use-cases/use-case-1-campaign-link.md).

# Campaign Deep Link Navigation

## Goal

Handle universal links from marketing campaigns and navigate to specific content.

## Actions Required

* `DeepLinkServicesOnUniversalLinkOpen`
* `DeepLinkServicesGetUniversalLinkResult`

## Variables Needed

* campaignId (String)

## Implementation Steps

### 1. ListenForLinks (Persistent State)

Use `DeepLinkServicesOnUniversalLinkOpen` in a persistent state.

### 2. Read Link Details

On `receivedEvent`, call `DeepLinkServicesGetUniversalLinkResult` to read:

* `rawUrl` (full URL)
* `queryKeys` / `queryValues` (parallel arrays)

### 3. Extract campaignId

Example URL: `https://game.com/promo?campaign=summer2024`

* Find key `"campaign"` in `queryKeys` and take the value from `queryValues` at the same index.

### 4. Navigate

Go to campaign-specific content or promo screen

## Use When

Marketing campaigns, email links, social media promotions