Extension guide

Magento 2 Constant Contact User Guide

Marketing lists go stale when Magento customers and Constant Contact contacts drift apart. This guide shows how Toweringmedia Constant Contact ($299) connects Magento 2 with Constant Contact API v3—OAuth, bidirectional sync, queue processing, conflict rules, install overview, troubleshooting, and FAQ.

Buy Constant Contact — $299 → Talk to Towering Media

Toweringmedia Constant Contact Magento 2 extension

There is no separate wiki page for this module yet—this CMS guide is the primary how-to. Product details and add-to-cart live on the Toweringmedia Constant Contact (Magento 2) page. Browse more modules in Magento 2 Extensions.

Why Magento & Constant Contact Drift Apart
What This Extension Solves
Key Features
System Requirements
Installation Overview
Connect & Configure Sync
Outbound Queue & Inbound Polling
Troubleshooting
Frequently Asked Questions
Related Extensions & Resources
Get the Extension

Why Magento & Constant Contact Drift Apart

Manual CSV exports or one-way plugins leave marketing and ecommerce out of sync:

Stale lists — new Magento customers never reach Constant Contact segments
Unsubscribe gaps — preference changes on one side are ignored on the other
Fragile auth — long-lived API keys fail when access is rotated
No conflict policy — duplicates and mismatched emails create messy campaigns

Watch for: If campaign open rates drop while store traffic is fine, list hygiene—not creative—may be the problem.

What This Extension Solves

The Toweringmedia Constant Contact extension synchronizes Magento customers and newsletter subscribers with Constant Contact using API v3 and OAuth 2.0.

Bidirectional sync for customers and newsletter subscribers
Secure OAuth 2.0 connection
Queue-based outbound processing so large catalogs do not block admin
Scheduled inbound polling to pull remote changes back into Magento
Flexible conflict resolution when both sides change the same contact
Hyvä-compatible storefronts (integration is admin/backend)

Composer: toweringmedia/module-constant-contact Price: $299 View product page →

Key Features

Constant Contact API v3 + OAuth authorize flow from Magento Admin
Outbound push for new/updated Magento customers and subscribers
Inbound reconcile for list membership and contact updates
Configurable mapping and conflict rules
Queue visibility for retries and failed jobs
Open Source & Adobe Commerce Magento 2.4.x

System Requirements

Magento: 2.4.4 – 2.4.7+ (Open Source & Adobe Commerce)
PHP: 8.1, 8.2, or 8.3
Towering Media Composer repository credentials
A Constant Contact account with API / OAuth application access

General Composer install steps: Installation guide.

Installation Overview

Step 1: Authenticate Composer

Add your Towering Media credentials to auth.json in the Magento root (same pattern as other Towering Media extensions).

Step 2: Require the package

composer require toweringmedia/module-constant-contact

Step 3: Enable and upgrade

php bin/magento module:enable Toweringmedia_ConstantContact
php bin/magento setup:upgrade
php bin/magento setup:di:compile
php bin/magento setup:static-content:deploy -f
php bin/magento cache:flush

Exact module enable name may match your package’s registration.php/module.xml—confirm in the package after install. Production stores should follow your normal deploy process.

Tip: Install and validate on staging first. Need help? Contact Towering Media.

Connect & Configure Sync

After install, authorize Constant Contact and choose what syncs:

Log in to Magento Admin.
Open Stores → Configuration → Toweringmedia → Constant Contact (label may vary slightly by version).
Enter OAuth client credentials from your Constant Contact developer app.
Click authorize / connect and complete the Constant Contact consent screen.
Choose which entities sync (customers, subscribers) and conflict behavior.
Enable the sync queue / cron jobs, Save Config, then flush cache.

Tip: Start with a small test list or staging store before enabling full production sync.

Outbound Queue & Inbound Polling

Outbound jobs push Magento changes to Constant Contact through a durable queue. Inbound polling pulls remote updates on a schedule so marketing preference changes stay reflected in Magento.

Watch the sync queue for failed jobs after big catalog imports
Re-authorize if OAuth tokens expire or the Constant Contact app is rotated
Pair with reliable transactional email via the SMTP user guide

Troubleshooting

OAuth authorize fails

Confirm redirect URI matches what Constant Contact expects
Check Client ID/Secret were saved at the correct config scope
Try re-authorize after cache flush

Contacts not appearing in Constant Contact

Confirm Enable / sync toggles are Yes
Check the outbound queue for errors
Verify cron is running so queued jobs process

Duplicates or wrong list membership

Review conflict resolution settings
Confirm email is the matching key on both sides

Still stuck? Contact support with the exact admin error text or log snippet (never paste API secrets or private keys in plain email).

Frequently Asked Questions

Does it sync both customers and newsletter subscribers?

Yes. Configure which entity types participate and how conflicts are resolved.

Is it Hyvä compatible?

Yes. Sync runs in Magento admin/backend services and does not depend on Luma templates.

How much does it cost?

$299 for Toweringmedia Constant Contact (see current pricing on the product page).

Where is support?

Use Contact Towering Media with your Magento version and the sync error text.

Want our Magento team to handle it?

Towering Media installs, configures, and customizes Constant Contact for Magento 2 stores — along with API integrations, accounting and CRM sync, and carrier or fulfillment connections.

Magento integration services →Tell us about your project

Get the Extension

Keep Magento and Constant Contact aligned. Connect with OAuth, sync customers and subscribers through a durable queue, and stop exporting CSVs by hand.