Upgrading Existing Contact Through Zapier

Occasional Participant



I am trying to set up a Zap on Zapier where I update an existing contact in Constant Contact.  I simply am trying to put the existing contact on a list, and am getting the following error message upon testing the Zap:


The app returned "Invalid ID. Acceptable formats are positive longs or UUIDs".


I can create a new contact in CC using Zapier, no problem at all.  It is just updating an already existing one that is give me issues.


Any ideas on how to get around this?






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did you figure out how to fix this? I am getting the same error. 

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