You have the same email for different Seller Central accounts
If you have more than one Amazon Seller Central use the same email address for have that's the case, and the logins are differentiated only by unique passwords, please make sure you are signing in with the right user/password combination.
You are a new seller
Amazon sets up your Sponsored Product Account only after an initial campaign setup.
Set up your first campaign within Seller Central before logging in Zon Tools platform. You can create a campaign with a $1 budget and $0.02 bid for a SKU of your choice.
For some sellers, a Sub Account need to be createdwith all the permissions above.
In a rare case, if doing all the above does not work, you might have to create a new email and give it the proper permission. Use this newly created email to access Zon.Tools.
Please try these and login again with your email.
(You can use the Amazon Login button on the homepage or bookmark it)