Here is the instructions to do tracking settings when campaigns for GDN (Android / iOS) are created.
You are supposed to complete the conversion tracking settings.
Check here for the instructions if you have not finished the conversion tracking settings.
- GDN (Google Display Network) / AdMob
1. Select "+CAMPAIGN" > "Display Network only".
2. Select "Install your mobile app" in "Marketing objective" section.
3. Set Campaign URL in "Campaign URL options (advanced)" section and click "Save and continue".
4. The following page appears after "Create an ad group" and "Create ads" are completed. The conversion tracking will be linked.
The settings are completed.
Check here if you have not finished the postback settings yet.