How can I Verify amazon seller id

I'm trying to create an app for Amazon sellers with the MWS API. How can I verify a seller ID that has been given to me for the MWS panel authorization?

Solution

For verification of seller account required following values:

MWS::Feeds::Client.new({ 
  primary_marketplace_id: marketplace_id,
  merchant_id: seller_id,
  aws_access_key_id: api_key,
  aws_secret_access_key: api_secret
})

*marketplace_id: A marketplace is an Amazon market where the seller can list items for sale and customers can view and purchase items. Each Amazon marketplace has a unique ID associated with it. Multiple marketplaces can exist in a single country. Example: www.amazon.com and www.amazon.co.uk

marchant_id, aws_access_key_id, and aws_secret_access_key all are available in Amazon account.