Constant Contact Sign-Up Form Not Adding Contacts

How to fix it

Try these in order — the most common fix is first.

1. 1. Check the list properly

   Copy steps
   1. Search the contact by email address rather than name
   2. Check whether the email was already imported or unsubscribed
   3. Confirm the correct list is selected in the form settings
   Did this fix it? Yes No

2. 2. Check the opt-in checkbox

   Copy steps
   1. Make sure the checkbox is visible on the live page and not hidden by theme code
   2. Test by ticking it and submitting a new address
   Did this fix it? Yes No

3. 3. Replace the plugin form

   Copy steps
   1. Build the form in Constant Contact's form builder
   2. Copy its HTML embed code into your page instead of the WordPress plugin form
   3. Check the plugin debug log for API errors if you keep the plugin
   Did this fix it? Yes No

Symptoms

A visitor submits the form and sees a thank-you message, but nothing appears in your list.

Why it happens

• Opt-in checkbox required but hidden or unticked
• WordPress plugin delay (opt-in runs on a cron job about a minute later) or plugin bug
• API errors such as status 400
• Email already on the list or previously unsubscribed
• Looking for the contact by name instead of email address

This guide also covers

• constant contact sign up form not working
• constant contact wordpress contacts not added
• constant contact form not adding to list

Other Constant Contact errors

• How to Cancel Constant Contact Subscription
• Constant Contact Emails Going to Spam
• Constant Contact Account Under Review or Suspended
• Constant Contact Contact Import Failed or Rejected
• Why Did My Constant Contact Bill Go Up?
• Charged by Constant Contact After Cancelling
• Constant Contact DMARC or Authentication Failing