Between 9pm - 11pm ET this Sat (9/18), we will be doing routine network maintenance. Please avoid usage of our API during this time frame - including any scheduled sync jobs. Thank you in advance for your patience.
In order for us to look into the problem you're experiencing, you'll need to provide more information, including the POST payload you are sending in, the endpoint you are calling to, the system response code, and any error messages you're receiving.
Do not send account credentials in your response, unless you send me a private message.
Rich Marcucella Sr. Technical Writer, Content Developer Web Services Team http://developer.constantcontact.com