Not able to create contacts

0 Votes

Hi Team,
I am working on to integrate with v3 API with my java Application. I am able to create list ,get contacts, get lists from constant contact but once I am trying to create the contacts in the list or separate contacts it is giving me this error.
I tried with same account from API Reference it is working fine.
These are my authorization scopes:
This is my request payload:
"email_address": "j***@m***.com",
"list_memberships": [

0 Votes

Hello GregS486,


Thank you for reaching out to Constant Contact API Developer Support. My team is here to assist outside software developers with questions about building into Constant Contact's API.


It looks like we've already followed up with you directly via email, but I wanted to close the loop here as well. If you haven't received our reply, please let us know via email at, and reference case number 32185406.


Please have a look and let us know if you have any other questions!



John B.
API Support Specialist
Did I answer your question? If so, please mark my post as an "Accepted Solution" by clicking the Accept as Solution button in the bottom right hand corner of this post.
Developer Portal

View API documentation, code samples, get your API key.

Visit Page


API Updates

Join our list to be notified of new features and updates to our V3 API.

Sign Up