Completes your Amazon Seller Central onboarding for you. One-time use.
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Version
0.2.0
updated 14 Oct 2026
About Threecolts Onboarding Assistant
Connecting your Amazon account to Threecolts takes a series of clicks in Seller
Central: authorizing the API connection, then finding the right permissions among
dozens of rows and setting each one correctly. It is fiddly, it is easy to get
wrong, and most people put it off.
This extension does that part for you.
You start it from your Threecolts onboarding page and watch it work. It opens the
right Amazon screens, selects the nine permissions Threecolts needs, and fills your
Seller Central account name back into the onboarding form so you never type it
twice. A list of steps shows you exactly what is happening as it happens.
Most people are done in a couple of minutes.
YOU STAY IN CONTROL
• It never sees your password. You sign in to Amazon yourself, the way you always
do. The extension is not permitted to run on Amazon's sign-in page at al
• It never chooses your account. If Amazon asks which account you are usin
extension stops and waits for you to pick.
• It never confirms anything in your name at the end. The final confirmation on
your Threecolts page is yours to make, and the extension stops just befo
• You can stop it whenever you like, from the toolbar.
IF SOMETHING IS NOT RIGHT, IT STOPS
Every step is checked before the next one starts. If a page looks different from
what the extension expects, or a click does not take effect, it stops stra
and tells you which step and why.
It will not carry on quietly and leave you half set up. Stopping clearly, and
saying so, is the whole point.
NOTHING LEAVES YOUR BROWSER
The extension sends nothing anywhere. It reads your Seller Central account name so
it can type it into your Threecolts onboarding form, and that is the only
your information it touches.
No tracking, no analytics, no third-party code.
IT IS A ONE-TIME TOOL
When your onboarding is finished the extension tells you so and offers to
itself. Nothing needs it installed afterwards, and it does nothing in the
background in the meantime.
WHAT YOU NEED
• Google Chrome on a desktop computer
• Your Threecolts onboarding page open
• A Seller Central sign-in that can manage user permissions, or the account owner's
Made by Threecolts for sellers setting up their account with us. If a step stops
and you are not sure why, your onboarding contact can pick it up from there.