Given a part of privacy policy text, identify the purpose for which the user information is collected/used. The purpose should be given inside the policy text, answer as 'Not Specified' otherwise

Let me give you an example: The site collects your IP address or device IDs for advertising. Collection happens when you implicitly provide information on the website.
The answer to this example can be: Advertising
Here is why: The given policy text states that it uses user information for 'advertising' explicitly

OK. solve this:
The site collects your generic personal information for personalization or customization. Collection happens by an unnamed service or third party, and your data is identifiable. You can opt in for data collection.
Answer:
Personalization/Customization