IDFA and IDFV are two sets of ID specifications designed by the iOS ecosystem for advertisers and developers, respectively. They can be used by APPs with job function email list advertisements and by the same application developer. The former is shared by different job function email list APPs under the same device, and the latter is shared by different APPs under the same developer.
It should be noted that users can continuously job function email list update IDFA by setting refresh. Of course, Apple does this to facilitate users to clear their personal historical traces, including their own privacy. After the introduction of Apple's new regulations, the APP also needs job function email list the user to complete the manual confirmation when obtaining the value of IDFA. 4. WeChat applet,
WeChat applet can use OPEN ID as the user's job function email list anonymous ID. 2. ID mapping The second step is association. According to the different problems solved by user association, user association can be divided into three levels, namely one-to-one association, one-to-many association and global association. 1. One-to-one association solves the association job function email list problem before and after user login. The core idea is to associate the anonymous ID . Under the one-to-one association scheme, although the behavior of users before and after login can be connected.