AEvent keeps each campaign linked to a specific Zoom connection. When you need to refresh your Zoom login, use the Re-Connect button, which keeps that same connection. If you remove the integration and add a new one instead, AEvent creates a brand-new connection, and your campaign is still pointing at the old one that no longer exists. That is what causes a lost session and the #web-002 registration error.

Refreshing your login and adding a new integration sound similar but do very different things:

This applies to every integration, not just Zoom. Re-Connect keeps the connection your campaigns already point at; adding a new one creates a separate connection they are not linked to. What you notice depends on the integration: with Zoom you lose your scheduled session and see #web-002; with an email, CRM, or SMS integration, the timeline actions that use it quietly stop reaching that tool. For the general reconnect steps on any integration, see our Reconnecting an Integration guide.

When your Zoom login needs refreshing, reconnect the existing integration instead of adding a new one:

You should see: the integration testing live again, with your campaigns still linked. For step-by-step detail on any integration, see our Reconnecting an Integration guide.

If you already replaced your Zoom connection and your campaign lost its session, you will see registration fail with #web-002, no upcoming session on the campaign, and a registrant count of 0. Your Zoom webinar and everyone who registered through AEvent are still there. Re-attach the campaign to the webinar that already exists in Zoom. Do not schedule a brand new event, because that creates a new Zoom webinar with new join links and splits your registrants across two events.

In AEvent, click Schedule an Event, then select your campaign.

You should see: the scheduler open with your campaign selected.

Under Delivery Application, choose the type that matches your Zoom event: Webinar for a Zoom webinar, or Meeting for a Zoom meeting.

You should see: the delivery type set to match your existing Zoom event.

Click the small clock next to Schedule. This is the attach option, not a new schedule. AEvent then asks Zoom for your upcoming events of that type.

You should see: a list of your upcoming Zoom events that are not yet linked.

Select your existing webinar from the list, then click Attach Campaign.

You should see: the scheduler return to its main screen with your webinar attached.

Review the settings, then click Schedule Event.

You should see: your session appear under Upcoming, and registration works again.

For the full attach flow with more detail, see Attach a Pre-Scheduled Zoom Event to a Campaign.

People who registered through your AEvent registration page stay attached to the webinar, and their join links do not change. If your dashboard briefly shows 0 registrants right after attaching, that number corrects itself as soon as the next person registers, so give it a moment and refresh.

There is one exception. Anyone who registered directly in Zoom, rather than through your AEvent page, is not known to AEvent, so they will not receive AEvent reminders, tags, or other automation. If you need those Zoom-only registrants inside AEvent, contact support about importing them. Do not re-run people who already registered through AEvent, since that can create duplicate join links.

If none of these resolve it, reach out to support and we will take a look.