I've created an API Key and List ID to get contacts from a Modern Events (M.E.) Calendar sign up into a specific Constant Contact mailing list. However, they are not talking to each other. Any ideas on what I need to be doing or might possibly have done incorrectly?
Since Constant Contact did not create this integration we are very limited on the support we can offer. I'm not familiar with that integration directly. Does the creator of the integration offer any setup instructions or guides? Have you tried reaching our to their support for further guidance?
We can try to do more troubleshooting, but the information we need would be of a more private nature. I would recommend to reach out to us using webservices(at)constantcontact(dot)com.