If you send email on behalf of many customers, you have probably had to pick between two imperfect options: run everyone through one shared account, where a single bad sender can drag down everyone's reputation, or spin up a separate top-level account per customer, with separate bills and no central oversight. Sub Accounts removes that trade-off.
Sub Accounts is now available in early access.
What it is
Sub Accounts let a parent account create and manage fully isolated child accounts under a single billing relationship. A sub account is a complete, regular AhaSend account in its own right, with its own domains, API keys, suppressions, and sending reputation. It just lives and is billed under the parent's umbrella.
Each customer gets clean separation, and you keep one combined invoice and central control.
Who it's for
- SaaS platforms giving each of their customers their own sending setup and domains.
- Agencies managing email for multiple clients under one account and one bill.
- Resellers who want per-customer isolation and usage reporting without running many top-level accounts.
- Cloud and hosting providers offering transactional email as part of their platform, with a separate sending account per tenant.
- Managed service providers running email for the clients they manage, each kept separate and individually reportable.
For a single business sending its own transactional mail, a regular account with multiple domains is still simpler and the better fit.
How it works
You provision a sub account from the parent in two Management API calls: create the sub account, then create its bootstrap API key. After that, the child key and child account ID are all you need to run that customer's email, across the full feature set, in complete isolation.
From the parent account you stay in control end to end: create, update, suspend and soft-delete sub accounts, set an optional monthly sending cap, and pull per-sub-account usage and allocated cost. You can also do it all in the dashboard.
The full walkthrough, including the provisioning flow and a worked example, is in the Sub Accounts documentation.
Get early access
Sub Accounts is part of our Platform Partner capabilities and is rolling out in early access now. If you send on behalf of multiple customers and want it enabled on your account, get in touch and we'll set you up, and we'd love your feedback while it's in early access.