You can use either a Developer Edition org account or a production org account to log into Copado Essentials. When you log into Copado Essentials for the first time, we create your profile (called a "team") in Copado Essentials and link to your Salesforce account.
Note: Salesforce sandboxes cannot be used to log into Essentials because Essentials uses the production login URL for authentication.
You can use any Salesforce license type including standard, platform user, or Chatter Free. Developer Edition orgs provide up to 5,000 chatter free licenses, which provides a very affordable authentication option for your development team.
Make sure you pick a Salesforce account that you're likely to remember and use the same account for your subsequent logins.