Checking for unsubscribes in Campaign Monitor

  • 19 September 2023
  • 4 replies

Userlevel 1

When someone registers on our site, we send the data to a webhook on zapier (Catch Hooks in Webhooks).

We then want to check campaign monitor if that person has subscribed and if not, add them.  For this step we use Find a Subscriber in Campaign Monitor.  Simple enough.

If the person found in CM has unsubscribed we get this email notification

“The app returned "Email Address exists in suppression list. Subscriber is not added.".”.

That makes sense.  

What we want to do is check if the person has unsubscribed and if so, do nothing.  If not, then proceed with adding them if they are not there, or do nothing if they are already subscribed.

How would I go about this?

The use case is people are registering for a particular event, but they have unsubscribed from event managers general mail list.  So we will get lots of these, where people will register for a new event, but they have removed themselves from the main list.  We are satisfied they cannot be added, but was hoping there was a way to check if they had subscribed or not first.

Not sure if it can be done through Paths or Filters.  

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4 replies

Userlevel 7
Badge +14

Hi @belipious 

Good question.

Can you post screenshots with how your Zap steps are configured to help give us full context?

Are you using a Find/Create Subscriber Zap action?


Perhaps try these Zap steps:

  1. Trigger: Webhook - Catch Hook
  2. Action: Campaign Monitor - Find Subscriber
  3. Action: Filter
  4. Action: Campaign Monitor - Add Subscriber
Userlevel 1

Thanks troy.  Screenshots attached.  Yes doing a Find / Create step.

What do I filter by in step 3??


Userlevel 7
Badge +14


If you just use a Find Subscriber with Zap Search Success on Miss = True, then there will be a data point that indicates whether a match was found or not. (false/true)


Userlevel 1

@Troy Tessalone thanks for your help, have it working now.