M2E Pro extension must be granted with MWS tokens to be able to interact with Amazon. The user token represents an authorization for application to access Amazon data on behalf of an Amazon User. The Extension allows granting and using an unlimited number of MWS tokens for Amazon accounts.
Note
A separate account must be configured in M2E Pro for every Amazon marketplace you sell on. It is required to set up inventory and order synchronization between Extension and appropriate marketplace.
Note
Please make sure you have got a valid Extension Key prior to adding Amazon account into M2E Pro.
Adding an Amazon Account
When you start working with M2E Pro at first, you will be able to create yourfirst Amazon Account.
If you need to add other accounts, you should:
go to Amazon > Configuration > Accounts
click on the Add Account button
Or
Use the Add Another button on the first step of listing creation.