# Troubleshooting

### OAUTH ERROR: failed to retrieve client id

<figure><img src="https://2805882550-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FwYKotMA1P52JalJtS5yp%2Fuploads%2FSkznkevKfDRwfHkeTvNN%2FScreenshot%202024-10-01%20140009.png?alt=media&#x26;token=32605f39-d202-4fbe-b4e9-eb48bd95bdc5" alt="" width="512"><figcaption></figcaption></figure>

If you encounter an error while linking Juble.io and Kustomer, it's possible the Juble.io app hasn't been installed within your Kustomer instance yet.

Head back to Step 1 of this documentation and follow the instructions for installing the Juble.io app. Once installed, you can proceed with linking Juble.io and Kustomer.

{% content-ref url="install-the-juble.io-kustomer-app" %}
[install-the-juble.io-kustomer-app](https://docs.juble.io/helpdesks/kustomer/install-the-juble.io-kustomer-app)
{% endcontent-ref %}