Sept 2018 and this is still an issue and not resolved. All Merch Accounts are attached to the same email ID that is used for the Amazon Buyer/Customer Account, and of course, your Amazon Seller Account or FBA business is also attached to the same Amazon Buyer/Customer Account because of the email ID.
Please allow all Merch Accounts to stand alone with their OWN login and not attached.
This would be great to help separate brands on Merch too. I have designs I want to create under a couple brands, but they all get tied to my Amazon customer account.
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