# E12050 — TCRCampaignNumberLinkNotFound

No matching number link was found on this 10DLC campaign.

- **HTTP status**: `404`
- **Type**: `not_found_error`
- **Name**: `TCRCampaignNumberLinkNotFound`

## What to do

List the campaign's numbers to see which links exist.

## Related

- [Regions](/docs/api/regions): matching keys, hosts, and data location
- [E12xxx — SMS sending & delivery](/docs/api/errors/E12xxx): 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`