Access to Orders.ListOrders is denied AccessDenied
To reauthorize your Amazon store:
1. Login to your Amazon seller account as the primary user and go to the Manage your apps page in Seller Central.
2. Click the Authorize new developer button and follow the authorization workflow.
3. Enter the Developer ID that applies to the account's Marketplace region:
4. Enter "SKULabs" as Developer Name.
5. Follow the prompts on the page, then copy the MWS Auth Token you receive at the end of the process.
6. Navigate to your SKULabs store settings page and select the Amazon store you are reauthorizing.
7. Scroll down to the Access credentials & integration settings panel and click to click to expand it.
8. Paste the MWS Auth Token you obtained from step 5.
9. Lastly, click Save at the top right corner of your store settings page.