As an extension seller, your process starts with the extension development and testing. During this phase, be sure to follow the Best Practices for Extension Developers.
Your Magento account provides access to the Magento Marketplace, as well as the developer tools needed to submit an extension for sale on the Marketplace.
Build your extension
Walk through the steps of the extension building process, and learn about the technical and marketing guidelines for selling extensions on Magento Marketplace.
Submit for review
After completing development, testing, and creating a new extension entry, you can submit your extension for Technical and Marketing review.