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# Where can I locate the reason for my call failing?

You can find all failed (and successful) calls on the Call History page.

Failed calls will display a red error message that explains why the call ended early or didn’t connect at all.

Here are a few common errors you might see:

* **Host elevenlabs.io is not allowed to connect to this agent**\
  This error usually occurs when the agent has an allowlist enabled, but the caller is using a
  shared link. Removing the allowlist will resolve this issue.
* **Missing required dynamic variables in **\_\_** : `{'dynamic variable name'}`**\
  This error typically appears when no transcript or call is generated. It means the caller didn’t
  configure a required dynamic variable correctly.
* **Agent has exceeded its daily call limit of**\
  The agent has a preset daily call limit. This error indicates that the call failed because the
  limit was exceeded.
* **Override is not allowed for this AI agent**\
  A simple error message indicating an attempt was made to override the prompt or other settings,
  but the override feature wasn’t enabled.
* **Missing dynamic variable after agent transfer**\
  This means a dynamic variable required by the transferred-to agent wasn’t available, causing the
  call to end.

If your call failed and no error message is displayed, please contact support by emailing us at [support@elevenlabs.io](mailto:support@elevenlabs.io).

> ElevenLabs provides APIs and SDKs for text to speech, voice cloning, speech to text, sound effects, voice isolator, voice changer, and conversational AI agents. Build voice-enabled applications with lifelike audio generation.