I have an application for Windows 10 (UWP App) available in the Windows Store for over 6 months and have never had any problems. I have already released more than 15 updates and I did not have any problems. Last week I released a new update, only with bug fixes and general improvements, the update was approved and was released. At the end of the week I received this message: "App Policies: 10.5.1 Privacy Policy Because your app accesses personal information, you need to supply a working link to a privacy policy in the “privacy URL” field when you submit the app."
My application is a simple application, and I do not need or use user data on either side of the application. Why does this happen? I do not have any website, where can I publish the privacy policy of the application?
Personal information includes all information or data that identifies or could be used to identify a person, or that is associated with such information or data. Examples of personal information include: name and address, phone number, biometric identifiers, location, contacts, photos, audio & video recordings, documents, SMS, email, or other text communication, screenshots, and in some cases, combined browsing history.(from Windows Store Policies-5.1 Personal Information)
You can have a check if your app collects one or two of these.
I think an individual blog is fine if you have no website.
After completing your privacy items, please remember to add the URL in Dev Center(Submission->Store listing->go to the Privacy policy URL in the end of Store listing page)