If you are getting the error message "Improper Advertising Identifier [IDFA] Usage", please use the instructions below to correct the problem in iTunes Connect before submitting your app to the iTunes App Store.
Step 1. After you have filled out your app information and the status is “Prepared for Upload”, click on the “Ready to Upload Binary” button in the upper right hand corner.
Step 2. Locate the Advertising Identifier section, click “Yes” radio button and then select two checkboxes:
- Serve advertisements within the app
- Limit Ad Tracking setting in iOS
Step 3. Submit “Continue” button to proceed.
Step 4. Click on “Save” button to get to the last step.
Step 5. Your app status is “Waiting for Upload” now. You can now upload app binary on the Apple Store via Application Loader and submit it for review.