Every sub-account has its own credentials, separate from the parent account. A request authenticated with a
sub-account API key is treated as that sub-account: it sends from the sub-account’s quota, writes to the
sub-account’s suppression list, and triggers the sub-account’s webhooks.Sub-accounts have access to the full API and Console. Sub-accounts cannot create sub-accounts.To get the sub-account ready to send, create at least one API key. Use the parent API key when using the sub-account API
to create a sub-account API key.Sub-accounts can manage their own API keys.Or a parent account can manage sub-account keys using the sub-account API.
