Since due to an increase in privacy there will be no IDFA from ios 14, so to track performance there will be few changes in the camp setup of Appsflyer.
Now you need to make sure to add mandatory parameters and macro in AF tracking URL while setting up the campaign. 


There will be no click id so tracking will work based on other parameter. 



Tracking URL setup



Old Setup
New Setup

http://app.appsflyer.com/com.yourapp?pid=mediaName_int&clickid={click_id}&af_siteid={publisher_id}&af_c_id={camp_id}

http://app.appsflyer.com/id123456789?pid=YOUR_NETWORK_ID&c={camp_title}&af_c_id={camp_id}&af_siteid={publisher_id}&af_ua={user_agent}&af_lang={device_lang}&af_ip={ip}&af_sub_siteid={source}




AF ParameterTrackier MacroDescription

c

{camp_title}

To pass the camp name

af_c_id

{camp_id}

To pass Camp id

af_siteid

{publisher_id}

To pass publisher id

af_sub_siteid{source}To pass sub publisher id

af_ua

{user_agent}

To pass user Agent

af_lang{device_lang}To Pass device language and locale


Privacy Postback For Appsflyer


In your account go to Automation > Integration > Mobile Marketing platform > Appsflyer > Setup Instruction.




You can share this privacy postback with the Appsflyer and do the test as per their instruction.