Add Account

This allows you to create a new account. You can add it with only a couple of fields set or flush it out more completely. Once added, all the fields can be updated at any time after the account has been created using the update methods documented below. TIP - If you have a providerAccountId, you can perform an "upsert" using the Update an Account endpoint. It's the same as the Add an Account endpoint but a PUT, not a POST (see below). This will add an account if necessary or update it if it already exists.