# Probabilistic Attribution

With the iOS 14 update, Apple has introduced new privacy features that aim to protect users' personal information, making it increasingly difficult for advertisers to accurately monitor user behavior and attribute conversions.

However, by using probabilistic attribution for a long chain of redirects, we can still accurately measure the effectiveness of our campaigns while maintaining compliance with Apple's policies. To implement this solution, we recommend adding an affiliate privacy postback in Offer18, which will allow us to push conversion data back to you without compromising user privacy.​

### Click Flow in Probabilistic Attribution (Example)

<figure><img src="https://295230641-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F41f2EboJipeUA6flsLGK%2Fuploads%2FBDBjUTkQ61GYhfCiZVYW%2FKnowledge%20Base_September%202023_2_-3.jpg?alt=media&#x26;token=a17000af-7d1b-4c21-b37d-cfecb6a015a8" alt=""><figcaption></figcaption></figure>

### Conversion Flow in Probabilistic Attribution (Example)

<figure><img src="https://295230641-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F41f2EboJipeUA6flsLGK%2Fuploads%2FFUCDhFEd0DGs1Jg233rK%2FPostback_Knowledge-Base_September-2023_2.jpg?alt=media&#x26;token=77a65230-0f69-41da-8320-249c9c8fe710" alt=""><figcaption></figcaption></figure>

### **Implementation for the Advertiser** <a href="#implementation-for-a-dvertiser" id="implementation-for-a-dvertiser"></a>

Create an offer using the tracking link provided by the advertiser. Confirm with the advertiser on the parameter for receiving offer ID and affiliate ID. Add **{offerid},{aff\_id}|{aff\_sub7}** against the parameter provided by the advertiser.

{% hint style="info" %}
Advertiser will pass your Offer ID, Affiliate ID and sub source data in **\&adv\_sub7** parameter in the Postback
{% endhint %}

<table data-view="cards"><thead><tr><th></th><th></th><th></th></tr></thead><tbody><tr><td><br><strong>{offerid}</strong></td><td>Macro to pass the Offer ID</td><td></td></tr><tr><td>​<br><strong>{aff_id}</strong></td><td>Macro to pass the Affiliate ID​</td><td></td></tr><tr><td><br><strong>{aff_sub7}</strong></td><td>Macro to pass Affiliate data</td><td></td></tr></tbody></table>

### **Implementation for the Affiliate** <a href="#implementation-for-affiliate" id="implementation-for-affiliate"></a>

Recive offer ID and affiliate ID in **\&aff\_sub7** parameter from the affiliate in affiliate tracking link. &#x20;

{% code title="Tracking Link" %}

```
https://example.o18.click/c?o=000&m=0000&a=00&aff_sub7={offerid},{aff_id}|{aff_sub7}
```

{% endcode %}

\
**Affiliate Privacy Postback**&#x20;

Add **{adv\_sub7}** in postback against the parameter provided by the affiliate.

{% code title="Privacy Postback" overflow="wrap" %}

```
https://example.o18.click/p?privacy_postback=1&mid=0000&adv_sub7={adv_sub7}
```

{% endcode %}

In above example **{adv\_sub7}** is the token which is being used to pass offer ID, affiliate ID to affiliate.

To save privacy Postback User must follow the steps given below

* Go to Affiliates » Affiliates Postback &#x20;
* Click on Add Global Postback / Add Offer Postback
* Select "Privacy Postback" from "Integration Type"
* Add Postback URL in "Postback URL"&#x20;
* Go to "**+ Add Postback**"

### Additional Values from Advertiser

Offer18 Admin can receive the additional values given below from your advertiser in privacy postback​​​

* p\_country
* p\_timestamp
* p\_postbackid
* p\_package