# E15073 — WhatsAppMessageLookupUnavailable

WhatsApp message lookup is temporarily unavailable. Please retry.

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

## What to do

Something this request depends on is temporarily unavailable. Retry with exponential backoff, reusing the same `Idempotency-Key` on mutating requests. If it persists, check the status page and contact support with the `request_id`.

## Related

- [E15xxx — WhatsApp sending & delivery](/docs/api/errors/E15xxx): 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)