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err:unkey:data:migration_not_found
Example
{
  "meta": {
    "requestId": "req_2c9a0jf23l4k567"
  },
  "error": {
    "detail": "The requested Migration could not be found",
    "status": 404,
    "title": "Not Found",
    "type": "https://unkey.com/docs/errors/unkey/data/migration_not_found"
  }
}

​
What Happened?

This error occurs when you’re trying to migrate api keys for a migration that doesn’t exist in the Unkey system. Common scenarios that trigger this error:
  • Using an incorrect or expired migrationId
  • The migration was deleted
  • The migration belongs to a different workspace
  • Typos in the migrationId
Here’s an example of a request that would trigger this error: 
# Attempting to migrate keys with a non-existent migrationId
curl -X POST https://api.unkey.com/v2/keys.migrateKeys \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer <UNKEY_ROOT_KEY>" \
  -d '{
    "apiId": "api_123",
    "migrationId": "migration_456",
    "keys": [{ "hash": "deadbeef" }]
  }'

​
How To Fix

If you’re unsure about your migrationId or setup, contact support@unkey.com.
Last modified on May 6, 2026