Hello GaylynnD,
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.
I was unable to find any keys created via the account you are posting from, and so was not able to verify within our logs what the issue may be.
I’ll be following up directly via email to request some additional information and provide some additional steps regarding updating existing V3 apps to our new authorization management service.
If you haven't received our reply (sent to the email address on file with your account), please let us know via email at webservices@constantcontact.com, and reference case number 29691176.
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