If you find that you're Amazon account has become de-linked, here are the steps to take to re-link your account:
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On the Top, Blue Menu Bar in your Admin, Click Channels > Amazon
2. In step 1, click the checkbox next to "enable your account"
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3. Scroll To the Bottom of the Amazon MWS Settings page, and click the big yellow "Start Listing on Amazon!" button to save changes.
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