> For the complete documentation index, see [llms.txt](https://help.sesami.co/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.sesami.co/get-started/onboarding/troubleshooting/session-expired.md).

# Session Expired

“Session expired” or “invalid link” can happen when booking links are opened after they expire or when cookies are blocked.

## Common causes

* Link opened much later (expired session)
* Browser blocks third-party cookies
* Aggressive privacy extensions
* Cached storefront pages serving outdated session data

## What to try

{% stepper %}
{% step %}

#### Open in incognito/private window

Try opening the booking link in a browser private or incognito window.
{% endstep %}

{% step %}

#### Disable ad blockers/privacy extensions temporarily

Some extensions can block cookies or scripts required for the booking session.
{% endstep %}

{% step %}

#### Clear browser cache and cookies

Clearing cache and cookies can remove outdated session data that causes the link to be treated as expired.
{% endstep %}

{% step %}

#### If on mobile, try another browser

Try opening the link in Chrome or Safari (or a different mobile browser) to rule out browser-specific cookie or privacy settings.
{% endstep %}
{% endstepper %}

## If the issue is frequent

* Review your theme caching setup
* Ensure the booking entry point is using the current embed/block

Related:

* Safari cookie issues: **/troubleshooting/safari-cookies**


---

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