List Builder iPad App: Internal Server Error??

Every time I try to use the Constant Contact List Builder app, after a contact enters their information and taps SUBMIT, a pop-up message appears saying "Internal Server Error". It's been doing this for many months

1 reply
Webinar

Is your small business or nonprofit losing time and engagement to outdated or confusing social media advice? April 23, 2026 2:00 pm ET

Popular Posts:

The world's largest virtual email marketing conference. November 12-13th.