Automatically Unsubscribes - We have used MailChimp for years and they use to offer excellent support, fast and knowledgeable...not sure what happened but now it's pretty much below average at best. You cannot even speak to someone on the phone and are forced to use chat (lots of people in the queue) or email. We have a list of 180K and spend over $700 a month with them and cannot talk to phone support - it's a JOKE. The latest issue, which started who knows when automatically unsubscribes new customers and you're not able to send them campaign emails. After spending all morning "chatting" with support, I was told it's a known issue that their engineers are working on. The would or could not tell me when it started or when it could be resolved. Looking for a new solution.

Totally broken - What has been working perfectly for years has been totally broken in since December update. No data being transferred to Mailchimp, people unsubscribed automatically, no pop up. Support have been very unhelpful and blame BC. Time to move on?

Automatically unsubscribes people - I have been using this app since 2015, we have had some ups and downs but nothing that compares to mailchimp unsubscribing people. Everytime someone placed an order through our website Mailchimp would unsubscribe them. Which in turn costs us money on the loss of retargeting them to make a purchase. Support offered nothing to help resolve and seemed uninterested in helping resolve, or informing us when it was. I have moved on to another email provider. You should too.

Automatically unsubscribes people - The latest version of this plugin automatically unsubscribes people from my mailing list, even if they are legitimate subscribers. There's a serious problem, and support won't help me resolve it in a timely manner. It's not a priority to them. I had to uninstall the plugin and migrate my whole mailing list to a new platform, which is a serious PITA.

No Support - The functionality looks awesome and the email builder looks good. However you get NO CUSTOMER SUPPORT. No phone number, no chat, just an email that they never respond timely too. Also the notifications do not work with bigcommerce even though they are suppose too

Does not work - Horrible app, horrible email marketing software, horrible customer service. The end

Integration - Used to work, then out of know where it stopped and customer service is almost stagnate. You think they would easily define what version of API key you are using without deleting app and reinstalling. Looking for a new app for my email campaigns.

No customer support - I have heard of MailChimp in the past and wanted to give it a try. Unfortunately, there is absolutely no support. You can not call or email the company without buying a plan first. Once I purchased a plan the support was still not available. I have requested a refund and have not heard back in several days. Now going to dispute the charge on my credit card. Very poorly designed APP. Beware!!!

Integration no longer works. - I get an error when I try to verify the new API key. It seems that the app is outdated and no longer works with Mailchmip's new API keys. AS a result, my subscribers from the BigCommerce and Mailchimp cannot be synced.

Doesn't work. - Used to love MailChimp but their integration with BC is garbage.

Store no longer synching - As another customer has pointed out, Mailchimp has shut down API 1.1, 1.2, and 1.3 meaning emails no longer sync and my customers, like myself, are getting pissed off.

Mailchimp shut down API 1.1, 1.2, and 1.3 - Mailchimp shut down API 1.1, 1.2, and 1.3 and DIDN'T even bother to update THEIR own app for this change. No longer syncs.

Horrible!! - I can no longer make a landing page for my own website unless I pay $99 a year. Sorry, I'm not doing this! Things have changed and not for the better with this company

Blank screen - I love Mailchimp. On WooCommerce the integration was a bit sketchy, but it worked. This app doesn't seem to do anything. I click on it and just get a blank screen.

Never worked - This has never worked. Had a "connected" site since December 2017 but never showed a list. Never sync'd with BigCommerce. Never could validate the last script for the footer. The only reason left to think why this doesn't work anymore for so long is these issues are purposeful...

Nice Idea. Doesn't Work - I have used MailChimp for several years as a paid subscription outside of BC and really liked it. Tried the app thinking it would fit my need for abandoned carts and remarketing, but it did not. I have spend countless hours creating the emails, connecting and reconnecting at least four times and no luck. Also, coupon codes do not feed over unless you disconnect and reconnect, which, if you get it to work MC says you loose all your data. Moving on.

Doesn't Work! - Integration install STILL does not work. Looks like it's been this way for months. Will be looking for something else now.

Run away! Doesn't work with BigCommerce - Since switching to MailChimp 1 month ago, we've been plagued by this issue where anyone who orders from our store gets UNSUBSCRIBED via Admin Action. Neither BigCommerce nor MailChimp can help us resolve this. MailChimp support said they are aware of the issue and developers are working on it. They gave us two months free service. Our developer's never heard of this issue. I can't get anyone on their awful chat/email support to escalate this and call me to find a resolution. I've documented this happening until I'm blue in the face and I just sit here every day watching a 5K mailing list erode away. This is the worst customer experience I've ever had. Run away and don't be lured in by their cheaper prices and advertised features. I mean if you can't even keep a simple mailing list accurately you have no business being in business.

Support? - I am still waiting on a response from their support team sent over a week ago. I have not been able to find any options for setting up rules on what actions move customers from one list to another. Considering alternative email solutions.

Lousy customer service - Every time they make a change Mailchimp wipes out my customer list. This last time my history of e-mails sent was also wiped out. Good luck getting in touch with or a response from their customer support. I had to un-install and re-install app on big commerce. Then it took days for the customer list to re-sync. At which time they added back customers who previously un-subscribed which made for some very un-happy customers.