AbantecartCart Version(s) 1.2.0-1.2.13 use MailChimp Integration v 1.2.8.3.

MailChimp Integration Extension for Abantecart – enables you to have two way sync between your MailChimp List and your Cart Newsletter List.
1.  Export existing newsletter list to MailChimp List
2.  Keep synchronized between MailChimp List and Cart newsletter list.
     Example Scenarios:
     - If customer unsubscribes via email instead via cart user panel.
     - Customer re-subscribes via email instead via cart signup form.
     - You're using MailChimp generated form as the signup form.
Setup
1. You need a MailChimp account to use this extension.
     A.  If you don't have an account register new account on MailChimp.
     B. After you logged into your MailChimp account click on Account name -> Account Settings ->Extras->API Keys
        Click "Create A Key" button and copy "API Key" column of your key and paste to My MailChimp API Key field.
2. Choose the desired Contact List name you want subscribers added to.
     At MailChimp Dashboard click Lists->Create List if you don't have one.
IMPORTANT NOTES:
There are two different contact forms that can be used. You must use only one at a time. Use a form that is designed within your MailChimp account -- see No. 3 for details. OR use an extension generated form following the instructions in No. 4 & 5 fields. You can change your choice at any time.

3. Fill this field with Share URL to form code which was obtained from MailChimp Sign up Form tools.

If using this form - skip No 4 and 5


4. Choose Yes if you want customer to fill their First Name.
5. Choose Yes if you want customer to fill their Last Name.

   After you turn on the extension, you will find the additional settings on the setup page:

   Finally Click the Save button and Turn On the extension.
Sync MailChimp list to Newsletter list


It will automatically update your site customer list with their newsletter status upon someone subscribes via your signup form outside of site or someone unsubscribes.
So your site will always be synced with MailChimp List
Tools
Export Newsletter list to MailChimp list
Click this button to export subscribed customers list to MailChimp List.
This is usually only needed if you have not had MailChimp signup form on your cart webpages previously. There is a duplication check made preventing an email being added if already in the MailChimp list
Note: The export is batch and NO welcome email will be sent.
Import MailChimp list to cart newsletter list
Click this button to import MailChimp List to cart newsletter list.
This is only needed if you are using MailChimp service before using Abantecart script and you want to import existing MailChimp list to cart newsletter list.
Contents
Edit Top And Bottom block content for signup form that comes with extension
You can add additional information above and/or below your signup form display area using the Content tab. This uses the standard block editor, one for each section; top content and bottom content.
Notes:
1. You must add space to the end of the content as this extension doesn't add html <br> automatically.
2. In case you previously inserted content above or below your signup form and you want to delete the content, make sure that the content is remove completely. You can click on the source button and remove completely.

Select the top content or bottom content, then click on the text Click Here to edit.., that will show the standard editor. Add the content that you wish to display and click SAVE to finish.
Storefront Display MailChimp Signup Form If you're using MailChimp Signup Form you will see:
MailChimp Extension Signup Form And if you're using MailChimp extension Signup Form you will see:
Change text Go to Language Definitions under System->Localization to change the wording according to your desired text.

v1.2.8.3

2018 - 08 - 25

bug-fix Fix inline editor mode in calendar content page.

Support Php v5.3-7.2.
Support AbanteCart v 1.2.11-1.2.13.

v1.2.8.2

2018 - 08 - 21

bug-fix Fix:
1. Use cacert.pem if site is not using HTTPS.
2. Missing firstname and lastname when customer unsubscribe and resubscribe.

v1.2.8.1

2017 - 01 - 07

bug-fix Fix:
1. Customer quick view sync newsletter status with MailChimp.
2. Unable to get MailChimp list if Quick View extension is turned on.

Support AbanteCart v 1.2.9.

v1.2.8

2016 - 12 - 19

feature MailChimp List name are now available as a dropdown option in admin settings page. So admin doesn't need to manually input the List ID.

changes Using MailChimp API v3.

bug-fix Fix:
1. Missing extension Newsletter signup block style.
2. Unsubscribing via account notification page for AbanteCart version 1.2.6-1.2.8.
3. Missing Sign Up button language definition in Newsletter block.


v1.2.7

2016 - 08 - 20

Initial Release for v1.2.7.

Support AbanteCart version 1.2.8

v1.2.6

2016 - 04 - 08

Initial Release for v1.2.6.

v1.2.0

2015 - 04 - 24

Initial Release.