| **Macro** | **Value** | **Description** |
|---|---|---|
| **`{click_id}`** | numeric | Unique Click ID |
| **`{campaign_id}`** | numeric | Campaign ID |
| **`{creative_id}`** | numeric | Creative ID |
| **`{source_id}`** | numeric | Publisher Source ID |
| **`{sub_id}`** | text | Publisher Sub-Source ID |
| **`{price}`** | numeric | Campaign bid price (per 1000 clicks) |
| **`{country}`** | text, ISO code | User country (ISO code) |
| **`{subs_age}`** | constant, text | The age of subscription in days: 1-3, 4-7, 8-15, 16+ |
| **`{model_price}`** | constant, text | Campaign pricing model ([CPC](https://wiki.dao.ad/books/terms-a-c/page/cpc "CPC") or [CPM](https://wiki.dao.ad/books/terms-a-c/page/cpc "CPC")) |
| **`{cpc}`** | numeric | Actual cost per click ([CPC](https://wiki.dao.ad/books/terms-a-c/page/cpc "CPC")) |
| **`{quality}`** | constant, text | Traffic quality: **low, regular, high, premium** |
| **`{category}`** | constant, text | Campaign category: **adult**, **racy**, or **mainstream** |
| **`{category_src}`** | constant, text | Traffic source category: **adult**, **racy**, or **mainstream** |
| `{city}` | text | User city |
| `{region}` | text | User region |
| `{ref}` | text | Referring page full URL |
| `{ip}` | IP | User IP address |
| `{os}` | text | User operating system |
| `{browser}` | text | User browser |
| **URL Parameter** | **Value** | **Description** |
|---|---|---|
| **DAO.AD API Server** | constant | DAO.AD postback endpoint URL |
| **key** | text | Unique API key used to authenticate server-to-server (S2S) postback requests. |
| **sum** | numeric | Conversion value or lead payout amount |
| **click-id** | numeric | Unique Click ID received from DAO.AD URL macros |
| **type** | text | The postback type (default is `main`). Common values include: `main` (e.g., registration), `dep` (e.g., deposit), or any custom types you define |
| **ttl** | numeric | Time in secounds. The postback request time-to-live (TTL). During this period, any postback containing the same Click ID will be treated as a duplicate and ignored. The default value is 24 hours. Minimum value 5 seconds |
**Important:** The API key can be found on your DAO.AD [Profile page](https://dao.ad/en/profile).
##### Example URL http://api.daopush-api.info/api/postback/campaign?key=**XXXXXXXXXXXXX**&sum=**{sum}**&click-id=**{click-Id}**&type=**{type}**&ttl=**{ttl}** **where:** **XXXXXXXXXXXXX** - your DAO.AD API key **{sum}, {click-Id}, {type}, {ttl} - **example macro names used by a CPA network or tracking platform. ##### How macro replacement works DAO.AD URL: http://api.daopush-api.info/api/postback/campaign?key=**XXXXXXXXXXXXX**&sum=**{sum}**&click-id=**{click-Id}**&type=**{type}**&ttl=**{ttl}** After CPA/Tracker request: http://api.daopush-api.info/api/postback/campaign?key=**XXXXXXXXXXXXX**&sum=**10**&click-id=**61721111**&type=**dep**&ttl=**50****Important:** These macro names are examples only and may differ depending on the CPA network or tracking platform. Always refer to the documentation of your CPA network or tracker.
##### Why is it needed? After a user completes a conversion, the CPA network or tracking platform sends conversion information back to DAO.AD. This data is used for reporting, optimization, automated rules, micro-bidding, and campaign analytics. ##### Benefits of postback tracking: - Accurate conversion tracking - ROI calculation - Automated blacklisting rules - Micro-bidding optimization - Source and sub-source analysis - Campaign performance reporting ##### Related - [Tracking Configuration Models](https://wiki.dao.ad/books/tracking-postback/page/tracking-configuration-models "Tracking Configuration Models") - [Blacklist and Whitelist Targeting](https://wiki.dao.ad/books/optimization-reporting/page/blacklist-and-whitelist-targeting "Blacklist and Whitelist Targeting") - [Micro-bidding Tool](https://wiki.dao.ad/books/optimization-reporting/page/micro-bidding-tool "Micro-bidding Tool") - [Bid Adjustments](https://wiki.dao.ad/books/optimization-reporting/page/bid-adjustments "Bid Adjustments")