# Access token issues

Authentication token errors are the most common KONNEKT issues. The pages below cover specific error messages and their solutions.

{% content-ref url="access-token-issues/error-message-about-missing-token" %}
[error-message-about-missing-token](https://docs.konnekt.io/troubleshooting/access-token-issues/error-message-about-missing-token)
{% endcontent-ref %}

{% content-ref url="access-token-issues/failed-to-obtain-access-token" %}
[failed-to-obtain-access-token](https://docs.konnekt.io/troubleshooting/access-token-issues/failed-to-obtain-access-token)
{% endcontent-ref %}

{% content-ref url="access-token-issues/failed-to-obtain-access-token-to-your-onedrive-account" %}
[failed-to-obtain-access-token-to-your-onedrive-account](https://docs.konnekt.io/troubleshooting/access-token-issues/failed-to-obtain-access-token-to-your-onedrive-account)
{% endcontent-ref %}