Hello @KelliA0 ,
If you are having issues connecting BigCommerce with Constant Contact I would suggest giving Support a call over the phone; that agent can then get you connected with our Tier 2 support staff. They can help troubleshoot with you real time on why this connection is not maintaining for you. Tier 2 is available Monday - Friday: 9 am - 7 pm ET and they can be reached at phone number 866-289-2101.
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