When a TimeRex event is cancelled, remove the attendee from a MailPoet list
When a TimeRex booking is cancelled, this workflow removes that attendee from the MailPoet list or lists you choose, so people who no longer plan to attend stop getting the emails meant for those who do.
TimeRex
MailPoet2 steps Setup ~5 min Used on 1.8k sites Free to import

What this workflow does
Many hosts keep a MailPoet list for each event, webinar or session type and use it for reminders and prep material. When someone cancels in TimeRex, they stay on that list unless you remember to take them off. This workflow removes them for you.
The TimeRex trigger, Event Cancelled, runs as soon as TimeRex reports a cancelled booking. The booking details, including the guest's email address, are passed to FlowMattic.
The MailPoet step removes an existing subscriber from one or more lists. Map the attendee's email so MailPoet can find them, and pick the lists to take them off. They stay a MailPoet subscriber and remain on any other lists. The step only works on people who are already subscribers, so this suits sites where bookers are added to MailPoet when they schedule. For anyone MailPoet does not know, nothing changes, and the run's entry in Task History shows MailPoet's response.
Webinar reminder list
Registrants who cancel in TimeRex come off the webinar's MailPoet list, so the reminder emails and the replay link go only to people still attending.
Workshop prep emails
A trainer sends homework before each workshop. Removing cancelled attendees from the workshop list keeps those emails to the people who will show up.
Consultation follow-up sequence
A list feeds emails before a consultation. When the booking is cancelled, the person leaves that list and stops receiving them.
How this workflow runs
What happens at each step once the workflow is on, and what you need before you import it.
TimeRex Event CancelledStarts a run for each cancelled TimeRex booking. The guest's details, including their email address, are passed on to MailPoet.
MailPoet Remove Subscriber From List(s)Removes the attendee from the MailPoet list or lists you choose. Map the attendee's email so MailPoet can find the subscriber, then pick the lists.
What you need
- FlowMatticCore
- TimeRex AccountAccount
- MailPoet PluginPlugin
After importing, map your own data. To keep the template universal, not every step is pre-filled. Open each step in the builder and connect your accounts and fields (channels, lists, sheets, recipients) before you switch the workflow on.
Make it yours
Changes worth making after you import it.
- Pair this with a TimeRex Event Confirmed workflow that uses MailPoet's Create New Subscriber and Add Subscriber to List(s) actions, so cancelling guests are already on the list to remove.
- Test after import with an email that is already on the list, then check in MailPoet that the subscriber has left only the lists you picked.
- If you also want a record of cancellations, add a Google Sheets step after MailPoet that logs the guest's name, email and booking details.
Questions about this workflow
Does the cancelled attendee get unsubscribed from all my MailPoet emails?
No. They are removed only from the lists you choose in the step. Their MailPoet subscriber record and their other lists stay as they are.
What if the TimeRex guest is not a MailPoet subscriber?
The step works on existing subscribers, so there is nothing to remove. Task History shows MailPoet's response for that run, and nothing else changes.
Is MailPoet needed on the same site as FlowMattic?
Yes. MailPoet is a WordPress plugin, and the step changes lists in the copy installed alongside FlowMattic.
Does this cancel anything in TimeRex?
No. TimeRex has already handled the cancellation. The workflow only reacts to it and updates your MailPoet lists.
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Import this workflow into your WordPress site
Download the JSON, import it from the Workflows screen and connect your accounts. Every run stays on your server, with no per-task fees.
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