Can't Start a Session — Concurrent Session Limit Reached
Every Co-browse plan caps how many sessions can run at once; hitting the cap means waiting or upgrading.
Co-browse caps how many sessions can be active at the same time within one organization. That cap depends on the add-on plan you've purchased, and once it's reached, agents can't start new sessions until a slot frees up.
How the limit works
- The count is real-time and org-wide: every "requested," "awaiting consent," or "active" session takes up a slot.
- A slot frees up the moment a session ends, for any reason — a clean close, the time cap, a disconnect, whatever.
- Every session also has a fixed 10-minute cap, so even during a busy stretch, slots keep turning over on their own.
Caps by plan
| Co-browse plan | Concurrent sessions |
|---|---|
| Standard | 3 |
| Pro | 6 |
| Business | 10 |
| Enterprise | Custom (talk to sales) |
Example
An organization on the Standard plan (3 slots) has three agents co-browsing with three different customers at once. A fourth agent tries to start a session and the button shows up disabled with a limit-reached notice. As soon as one of the three active sessions ends, the button becomes clickable again.
What to do
- Wait for one of the active sessions to end — this usually resolves within minutes, given the 10-minute cap per session.
- If your team regularly needs more concurrent sessions, upgrade the plan from Billing → Add-ons → Co-browse, or email [email protected] for a custom Enterprise plan.
Troubleshooting
If the button stays disabled with no obvious reason even though few sessions are active, check whether one got "stuck" (say, a customer closed the tab without warning) — the system ends it on its own via the disconnect watchdog within the first 30-60 seconds, freeing the slot.
Related articles
-
What Co-browse is and how to enable it
Co-browse lets you see the customer's screen in real time to guide them better. Learn how to enable it.
-
How to start a Co-browse session with a customer
Step by step to invite the customer to share their screen and guide them in real time.
-
Prerequisites for using Co-browse
Before you start your first Co-browse session, check the add-on, your permissions and the Webchat channel conditions.
-
The visitor consent modal
What the customer sees when you start Co-browse: the screen-sharing request, what happens if they accept or decline, and the active-session bar.
-
Visitor RADAR: access it, read it and search
The RADAR is a live list of the people browsing your webchat right now and whom you can start co-browsing in one click.