# E28009 — AMBAppleBusinessIDTaken

This Apple Business ID is already connected to a business.

- **HTTP status**: `409`
- **Type**: `conflict_error`
- **Name**: `AMBAppleBusinessIDTaken`

## What to do

Each Apple Business ID can belong to one active business record. Check that the messaging Business ID matches the account in Apple Business Register. If the record is in this workspace, use it. If another workspace owns the record, use that workspace to manage it. Registering the same Apple Business ID here does not transfer ownership.

Operations that resolve this:

- [List Apple Messages for Business records](/docs/api/reference/list-amb-businesses)

## Related

- [Idempotency](/docs/api/idempotency): safe retries and key reuse rules
- [E28xxx — Apple Messages for Business](/docs/api/errors/E28xxx): every code in this range
- [Errors](/docs/api/errors): the full wire contract, status mapping, and error catalog
- [Error handling](/docs/guides/errors): branching on `type` and `code`, validation details, and `vendor_code`

## Related resources

- [Should I use a Bird SDK or call the API directly?](/explained/platform/should-i-use-an-sdk-or-call-the-api-directly) (answer)
- [Build your first integration](/learn/paths/integration) (course)
- [Send your first email](/docs/get-started/send-your-first-email) (docs)

[Get an implementation brief](/learn/workspace?topic=api-basics)