1. Go to developer.ups.com and login with your UPS account credentials.
2. Click on My Apps on the left-hand side of your profile icon.
3. If you've already setup up your store on UPS, click the profile. If no app exists, click on Add Apps and fill out all the required information.
4. Click on My Apps again and you should see the screenshot below:


5. Click on the the App Name link



6. Check the "Products In Use" section and Make sure "Rating and Authorization (OAuth)" is present. If one or both is missing, proceed to step 7. If both are there, skip to step 11.



7. Click on Add Products


8. Use the search function and search for Authorization (OAuth) and/or Rating (whichever is missing in the products in use in step 6.)


9. Click the + sign (it should change to a check mark)



10. Click SAVE.


11. After clicking save, you will be redirected back to your My Apps dashboard. Click on the eye icon to view your Client ID, Client Secret and Billing Account number. 


Add the Client ID and Client Secret to the UPS section in the control panel of your store and click SAVE.


This completes the steps required for the UPS OAUTH 2.0 update.