Hello ColinHuronCoC,
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 able to find an open ticket for this issue, and it looks like a fix was pushed out on 7/14/24.
The ticket also notes that if you are still experiencing the issue, that it is likely due to stored cache/cookies from prior to the fix, and that clearing the cache/cookies for the time range of "all time" should fix the issue.
If you have further questions regarding this issue, please reach out to Constant Contact's Support Team at 866-289-2101 and reference case #32626962.
Please have a look and let us know if you have any other questions!
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