---
title: "E27004 — InboxInsightsSeedTestAllowanceUnavailable"
description: "The seed-test allowance could not be checked."
canonical: "https://bird.com/docs/api/errors/E27004"
---

# E27004 — InboxInsightsSeedTestAllowanceUnavailable

The seed-test allowance could not be checked.

- **HTTP status**: `503`
- **Type**: `service_unavailable_error`
- **Name**: `InboxInsightsSeedTestAllowanceUnavailable`

## What to do

Wait a moment and retry the history read. For registration, retry with the same idempotency key and unchanged request; the allowance counter may have changed even though registration did not reach the measurement service. Contact support if the allowance appears incorrect.

## Related

- [E27xxx — Inbox Insights](/docs/api/errors/E27xxx): 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)