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 changed the status of the API Key from Waiting to Enabled for you. This issue often occurs when multiple API Keys are created in a short span of time. Essentially it's just a provisionary period before they're enabled but I overridden the status.
Please reply directly to this if you have any other questions!
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