API Permissions Issue, using API Explorer

[websolutions55]

I have created a user token with a production environment application and a real production user. I'm using the API Explorer and have pasted the user token in the Token field, tried to make a basic createOrReplaceInventoryItem with their example, and I get this response:

"errors": [
{
  "errorId": 1100,
  "domain": "ACCESS",
  "category": "REQUEST",
  "message": "Access denied",
  "longMessage": "Insufficient permissions to fulfill the request."
}

When I created the application keys in, there were no options given for which APIs or calls I needed. Why would I not have sufficient privileges? I've tried using a few of the boilerplate samples: basic, advanced, a few different call types and they all give this response.

[shipscript]

Have you completed the "Marketplace Account Deletion" section for your key set?

https://developer.ebay.com/marketplace-account-deletion

New Developers: All new third-party developers coming to the platform must subscribe to or opt out of eBay marketplace account deletion/closure notifications before they make their first API call. Once the new developer's application is subscribed to eBay marketplace account deletion/closure notifications or they have successfully opted out of the notifications, the keyset/App ID is activated, and they can begin making API calls.

[websolutions55]

Yes I had done this already. It appears to have eventually worked when I did oAuth, but I needed to configure a RuName before I could use the eBay "Get a User Token" via oAuth, as it wouldn't let me continue with the oAuth radio button until I created a RuName. It doesn't really make sense to me why the oAuth that's part of the built-in eBay system to get a token wouldn't work unless a redirect was setup, but I have certainly experienced my fair share of browser bugs while using the developers API console!

Thanks for the suggestion!