I have obtained the code example. Now I have two problems. The first one is that I can’t find the fields of'purchase' and'install'. Without these two fields, our data report will be incomplete. The second problem is that I don’t know how to group them according to the mobile operating system (IOS/ANDORID). I have attached a screenshot of my code below. Please help me, thank you! ! !

Regarding the first question, for the purchase and install fields, I did not find these two fields.'purchase' represents the number of purchases by the user after the ad is placed, and ``install'' represents the download by the user after the ad is placed. frequency. I have two problems with the ExternalConversionSource field you provided. The first is that it is incompatible with many of the fields we want to use. The second is that only'Google Play' and'Third-party app analytics' are returned. , I did not find information about the mobile phone operating system (ios/android), if you have ideas, please help me!