Please complete all steps at the link in 1. SETUP (REQUIRED).
In summary for Amazon:
1. After Zontracker signup (at the link above), you will get Amazon settings link (shown in screenshot below step 1). Go to the link.
You must activate Zontracker inside of your Amazon Seller Central account using the Zontracker Developer name and ID.
You will receive the Seller ID and MWS Auth Token from Amazon. This step confirms Amazon approved the app for your account.
Save the Seller ID and MWS Auth Token from above. Return to Zontracker window to submit the info in our form (same screenshot as before).
IMPORTANT: If you already did all of the steps above, here's how to confirm that you did them correctly.
Your Amazon Seller Central account -> Settings -> User Permissions -> Third Party Developer and Apps (visit Manage Your Apps).
Clicking this link will take you to the same place https://sellercentral.amazon.com/apps/manage
Scroll down and confirm that you see Zontracker listed. Send a screenshot to our support of this page with Zontracker visible and also screenshot after clicking "View" MWS Auth Token column in the Zontracker row. Click "Renew" every 6 months.
You must complete Facebook settings (next support document) and wait for Zontracker to approve and activate the account (0-4 days).