How profiles merge
CleverTap creates one profile for a user across all of their devices. This ensures that when you look at a user profile in CleverTap, its a wholistic view of a user, including all of their behaviour, across devices.
Profiles in CleverTap merge under 2 scenarios:
When the same person is identified on multiple devices
In this case, if CleverTap gets the same identity on different devices. The profiles of these users will be merged.
When multiple people are identified on the same device
If you push multiple identities on the same device, without using the OnUserLogin API, CleverTap will merge profiles for all of these users. If you would like to avoid this merge, you have to ensure that when you are identifying users (i.e. users are logging in, you call the OnUserLogin API). Read more on how to use the OnUserLogin API to avoid this type of merge here.