This endpoint creates a new user profile if the user doesn’t exist yet. Otherwise, the user profile is updated based on the properties provided.
auth_token.Example: ?auth_token=123language, timezone and userAgent attributes are reserved properties that may be updated automatically by our SDKs. You can use these properties but bear in mind they may be overwritten if using our SDKs or integrations. All other keys are freeform and can be defined by you.