wpsnoop: fix MailChimp Campaigns Manager plugin conflicts, errors & issues

When the plugin MailChimp Campaigns Manager conflicts or throws a PHP error we hope wpsnoop can help you to fix the issue quickly.


Discover which shortcodes wp-options PHP functions database tables and files are created by MailChimp Campaigns Manager, plus learn which plugins and/or themes could be in conflict with MailChimp Campaigns Manager.


Troubleshooting theme and plugin conflicts is easier when you know what MailChimp Campaigns Manager leaves behind after uninstalling it from a WordPress installation, there is a list down below for your convenience.

Expert advice is recommended if you are not technically proficient with PHP, MySQL etc. View support options for MailChimp Campaigns Manager

Get professional support for MailChimp Campaigns Manager here

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What does MailChimp Campaigns Manager version 3.2.4 add to WordPress? Answers Here.

This is an automatically generated report - it is possible for MailChimp Campaigns Manager to perform differently in your installation, previous versions before 3.2.4 may have created a different set of shortcodes, used different function names or could have created entirely different database tables to store settings and operate. This is not an exhaustive list but shows how version 3.2.4 of MailChimp Campaigns Manager behaves when installed and removed on a clean installation of WordPress.

We have not tested individual shortcodes, features or settings of this plugin but instead have concentrated on the potential for obvious errors and conflicts which can occur, if you need help with the plugin in your local installation you can get WordPress help and support for MailChimp Campaigns Manager by clicking here.

Our testing covered the free version of this plugin there may or may not be a paid version or premium version available for purchase that unlocks additional features and could behave in a slightly or very different manner.

Which new files does MailChimp Campaigns Manager add to WordPress?

This section will populate with a table showing an icon, size and filepath.

Type & Path Size Conflicts
wp-content/plugins/olalaweb-mailchimp-campaign-manager/ 1.24MB No known conflicts with other themes or plugins.
wp-content/plugins/olalaweb-mailchimp-campaign-manager/.gitignore 22.00B No known conflicts with other themes or plugins.
wp-content/plugins/olalaweb-mailchimp-campaign-manager/assets/ 1.15MB No known conflicts with other themes or plugins.
wp-content/plugins/olalaweb-mailchimp-campaign-manager/assets/banner-1544x500.png 12.45kB No known conflicts with other themes or plugins.
wp-content/plugins/olalaweb-mailchimp-campaign-manager/assets/banner-772x250.png 5.44kB No known conflicts with other themes or plugins.
wp-content/plugins/olalaweb-mailchimp-campaign-manager/assets/icon-128x128.png 9.48kB No known conflicts with other themes or plugins.
wp-content/plugins/olalaweb-mailchimp-campaign-manager/assets/icon-256x256.png 19.79kB No known conflicts with other themes or plugins.
wp-content/plugins/olalaweb-mailchimp-campaign-manager/assets/screenshot-1.png 42.17kB No known conflicts with other themes or plugins.
wp-content/plugins/olalaweb-mailchimp-campaign-manager/assets/screenshot-2.png 37.85kB No known conflicts with other themes or plugins.
wp-content/plugins/olalaweb-mailchimp-campaign-manager/assets/screenshot-3.png 761.79kB No known conflicts with other themes or plugins.
wp-content/plugins/olalaweb-mailchimp-campaign-manager/assets/screenshot-4.png 273.70kB No known conflicts with other themes or plugins.
wp-content/plugins/olalaweb-mailchimp-campaign-manager/assets/svg.svg 12.29kB No known conflicts with other themes or plugins.
wp-content/plugins/olalaweb-mailchimp-campaign-manager/changelog.txt 3.46kB No known conflicts with other themes or plugins.
wp-content/plugins/olalaweb-mailchimp-campaign-manager/class/ 46.25kB No known conflicts with other themes or plugins.
wp-content/plugins/olalaweb-mailchimp-campaign-manager/class/MailchimpAdmin.php 17.22kB No known conflicts with other themes or plugins.
wp-content/plugins/olalaweb-mailchimp-campaign-manager/class/MailchimpCampaign.php 6.22kB No known conflicts with other themes or plugins.
wp-content/plugins/olalaweb-mailchimp-campaign-manager/class/MailchimpCampaignMetabox.php 4.46kB No known conflicts with other themes or plugins.
wp-content/plugins/olalaweb-mailchimp-campaign-manager/class/MailchimpCampaigns.php 3.09kB No known conflicts with other themes or plugins.
wp-content/plugins/olalaweb-mailchimp-campaign-manager/class/MailchimpCampaignsManager.php 6.08kB No known conflicts with other themes or plugins.
wp-content/plugins/olalaweb-mailchimp-campaign-manager/class/MailchimpCustomPostType.php 7.11kB No known conflicts with other themes or plugins.
wp-content/plugins/olalaweb-mailchimp-campaign-manager/class/MailchimpPost.php 2.08kB No known conflicts with other themes or plugins.
wp-content/plugins/olalaweb-mailchimp-campaign-manager/css/ 3.08kB No known conflicts with other themes or plugins.
wp-content/plugins/olalaweb-mailchimp-campaign-manager/css/mailchimp_campaigns_manager_admin.css 1.33kB No known conflicts with other themes or plugins.
wp-content/plugins/olalaweb-mailchimp-campaign-manager/css/mailchimp_campaigns_manager_list.css 231.00B No known conflicts with other themes or plugins.
wp-content/plugins/olalaweb-mailchimp-campaign-manager/css/mailchimp_campaigns_manager_metaboxes.css 231.00B No known conflicts with other themes or plugins.
wp-content/plugins/olalaweb-mailchimp-campaign-manager/css/mailchimpcampaigns_admin.css 874.00B No known conflicts with other themes or plugins.
wp-content/plugins/olalaweb-mailchimp-campaign-manager/css/mailchimpcampaigns_list.css 231.00B No known conflicts with other themes or plugins.
wp-content/plugins/olalaweb-mailchimp-campaign-manager/css/mailchimpcampaigns_metaboxes.css 230.00B No known conflicts with other themes or plugins.
wp-content/plugins/olalaweb-mailchimp-campaign-manager/index.php 28.00B No known conflicts with other themes or plugins.
wp-content/plugins/olalaweb-mailchimp-campaign-manager/js/ 5.55kB No known conflicts with other themes or plugins.
wp-content/plugins/olalaweb-mailchimp-campaign-manager/js/mailchimp_campaigns_manager_admin.js 5.55kB No known conflicts with other themes or plugins.
wp-content/plugins/olalaweb-mailchimp-campaign-manager/lang/ 8.68kB No known conflicts with other themes or plugins.
wp-content/plugins/olalaweb-mailchimp-campaign-manager/lang/french/ 8.68kB No known conflicts with other themes or plugins.
wp-content/plugins/olalaweb-mailchimp-campaign-manager/lang/french/wp-plugins-olalaweb-mailchimp-campaign-manager-dev-readme-fr.po 8.68kB No known conflicts with other themes or plugins.
wp-content/plugins/olalaweb-mailchimp-campaign-manager/lib/ 3.67kB No known conflicts with other themes or plugins.
wp-content/plugins/olalaweb-mailchimp-campaign-manager/lib/basic-auth.php 3.67kB No known conflicts with other themes or plugins.
wp-content/plugins/olalaweb-mailchimp-campaign-manager/mailchimp-campaigns-manager.php 23.86kB No known conflicts with other themes or plugins.
wp-content/plugins/olalaweb-mailchimp-campaign-manager/mailchimp-campaigns.php 209.00B No known conflicts with other themes or plugins.
wp-content/plugins/olalaweb-mailchimp-campaign-manager/readme.txt 3.40kB No known conflicts with other themes or plugins.
wp-content/plugins/olalaweb-mailchimp-campaign-manager/uninstall.php 293.00B No known conflicts with other themes or plugins.
wp-content/plugins/olalaweb-mailchimp-campaign-manager/upgrade.txt 677.00B No known conflicts with other themes or plugins.

Which new shortcodes does MailChimp Campaigns Manager add to WordPress?

ShortCode   Known Plugin or Theme conflicts
[campaign] The campaign shortcode has potential conflicts with at least 3 other plugins or themes.

Note: We have not yet checked to see if these shortcodes work as expected in pages, posts, sidebar widgets, or when set as the page title, in content, in the excert, in menus or anywhere else within a WordPress installation. A shortcode could produce errors due to parameters added when it is used, or if the plugin is updated and the format of the shortcode has changed.

Which new database tables are created by the WordPress plugin MailChimp Campaigns Manager?

Which new options are added to the wp-options table by MailChimp Campaigns Manager?

Option Name   Known Conflicts
mailchimp_campaigns_manager_labels The mailchimp_campaigns_manager_labels option doesn't have any known conflicts with other themes or plugins.

During use MailChimp Campaigns Manager may or may not create more options depending on how the plugin is configured and depending on which other themes and plugins are active in your specific hosting environment.

What new PHP functions does MailChimp Campaigns Manager declare when it is active?

Function   Conflicts Common Errors
json_basic_auth_error 2 conflicts Fatal error: Cannot redeclare json_basic_auth_error()
json_basic_auth_handler 2 conflicts Fatal error: Cannot redeclare json_basic_auth_handler()
mailchimp_campaigns_admin_notice 0 conflicts Fatal error: Cannot redeclare mailchimp_campaigns_admin_notice()
mailchimp_campaigns_manager_add_css 0 conflicts Fatal error: Cannot redeclare mailchimp_campaigns_manager_add_css()
mailchimp_campaigns_manager_add_js 0 conflicts Fatal error: Cannot redeclare mailchimp_campaigns_manager_add_js()
mailchimp_campaigns_manager_banner 0 conflicts Fatal error: Cannot redeclare mailchimp_campaigns_manager_banner()
mailchimp_campaigns_manager_campaign_shortcode 0 conflicts Fatal error: Cannot redeclare mailchimp_campaigns_manager_campaign_shortcode()
mailchimp_campaigns_manager_compatibilty 0 conflicts Fatal error: Cannot redeclare mailchimp_campaigns_manager_compatibilty()
mailchimp_campaigns_manager_compatibilty_shortcode 0 conflicts Fatal error: Cannot redeclare mailchimp_campaigns_manager_compatibilty_shortcode()
mailchimp_campaigns_manager_connect_app 0 conflicts Fatal error: Cannot redeclare mailchimp_campaigns_manager_connect_app()
mailchimp_campaigns_manager_cpt_activate_rest 0 conflicts Fatal error: Cannot redeclare mailchimp_campaigns_manager_cpt_activate_rest()
mailchimp_campaigns_manager_custom_roles 0 conflicts Fatal error: Cannot redeclare mailchimp_campaigns_manager_custom_roles()
mailchimp_campaigns_manager_dependencies 0 conflicts Fatal error: Cannot redeclare mailchimp_campaigns_manager_dependencies()
mailchimp_campaigns_manager_disconnect_app 0 conflicts Fatal error: Cannot redeclare mailchimp_campaigns_manager_disconnect_app()
mailchimp_campaigns_manager_edit_screen 0 conflicts Fatal error: Cannot redeclare mailchimp_campaigns_manager_edit_screen()
mailchimp_campaigns_manager_embed_filter 0 conflicts Fatal error: Cannot redeclare mailchimp_campaigns_manager_embed_filter()
mailchimp_campaigns_manager_filter_rest_post_type_collection_params 0 conflicts Fatal error: Cannot redeclare mailchimp_campaigns_manager_filter_rest_post_type_collection_params()
mailchimp_campaigns_manager_get_app_query 0 conflicts Fatal error: Cannot redeclare mailchimp_campaigns_manager_get_app_query()
mailchimp_campaigns_manager_get_app_url 0 conflicts Fatal error: Cannot redeclare mailchimp_campaigns_manager_get_app_url()
mailchimp_campaigns_manager_get_meta 0 conflicts Fatal error: Cannot redeclare mailchimp_campaigns_manager_get_meta()
mailchimp_campaigns_manager_get_meta_fields 0 conflicts Fatal error: Cannot redeclare mailchimp_campaigns_manager_get_meta_fields()
mailchimp_campaigns_manager_get_post_type 0 conflicts Fatal error: Cannot redeclare mailchimp_campaigns_manager_get_post_type()
mailchimp_campaigns_manager_get_total 0 conflicts Fatal error: Cannot redeclare mailchimp_campaigns_manager_get_total()
mailchimp_campaigns_manager_import 0 conflicts Fatal error: Cannot redeclare mailchimp_campaigns_manager_import()
mailchimp_campaigns_manager_init 0 conflicts Fatal error: Cannot redeclare mailchimp_campaigns_manager_init()
mailchimp_campaigns_manager_is_pro 0 conflicts Fatal error: Cannot redeclare mailchimp_campaigns_manager_is_pro()
mailchimp_campaigns_manager_logo 0 conflicts Fatal error: Cannot redeclare mailchimp_campaigns_manager_logo()
mailchimp_campaigns_manager_query_campaign_by_remote_id 0 conflicts Fatal error: Cannot redeclare mailchimp_campaigns_manager_query_campaign_by_remote_id()
mailchimp_campaigns_manager_recalculate 0 conflicts Fatal error: Cannot redeclare mailchimp_campaigns_manager_recalculate()
mailchimp_campaigns_manager_register_labels 0 conflicts Fatal error: Cannot redeclare mailchimp_campaigns_manager_register_labels()
mailchimp_campaigns_manager_register_metas 0 conflicts Fatal error: Cannot redeclare mailchimp_campaigns_manager_register_metas()
mailchimp_campaigns_manager_remove_license 0 conflicts Fatal error: Cannot redeclare mailchimp_campaigns_manager_remove_license()
mailchimp_campaigns_manager_rewrite_flush 0 conflicts Fatal error: Cannot redeclare mailchimp_campaigns_manager_rewrite_flush()
mailchimp_campaigns_manager_settings_link 0 conflicts Fatal error: Cannot redeclare mailchimp_campaigns_manager_settings_link()
mailchimp_campaigns_manager_shutdown_shortcode 0 conflicts Fatal error: Cannot redeclare mailchimp_campaigns_manager_shutdown_shortcode()
mailchimp_campaigns_manager_update_app 0 conflicts Fatal error: Cannot redeclare mailchimp_campaigns_manager_update_app()
mailchimp_campaigns_manager_update_license 0 conflicts Fatal error: Cannot redeclare mailchimp_campaigns_manager_update_license()
mailchimp_campaigns_manager_update_meta 0 conflicts Fatal error: Cannot redeclare mailchimp_campaigns_manager_update_meta()
mailchimp_campaigns_manager_update_rest_user 0 conflicts Fatal error: Cannot redeclare mailchimp_campaigns_manager_update_rest_user()
mcc 0 conflicts Fatal error: Cannot redeclare mcc()

Using MailChimp Campaigns Manager from the command line with WP-CLI

The following commands are provided for convenience and should only be used if you understand how WP-CLI works. These commands refer to a single WordPress instance and may need to be modified if you are working with a Multisite installation.


How to install MailChimp Campaigns Manager from the command line with WP-CLI

Navigate to the root of your WordPress installation and type the following command:

wp plugin install olalaweb-mailchimp-campaign-manager


How to activate MailChimp Campaigns Manager from the command line with WP-CLI

To immediately activate MailChimp Campaigns Manager after WP-CLI downloads the latest version you can use the following command:

wp plugin install olalaweb-mailchimp-campaign-manager --activate


How to reinstall MailChimp Campaigns Manager from the command line with WP-CLI

To force a reinstallation of MailChimp Campaigns Manager which overwrites the current plugin without asking for confirmation you can use the following command:

wp plugin install olalaweb-mailchimp-campaign-manager --force


How to update MailChimp Campaigns Manager to the latest version from the command line with WP-CLI

wp plugin update olalaweb-mailchimp-campaign-manager


How to delete MailChimp Campaigns Manager from the command line with WP-CLI

wp plugin delete olalaweb-mailchimp-campaign-manager

Where can you download earlier versions of MailChimp Campaigns Manager?

Whenever possible you should use the latest version of plugins and themes, however if you have recently updated and discovered that you need to install an earlier version you may be able to download other versions of MailChimp Campaigns Manager from the WordPress repository by visiting this link.

Please note that installing earlier versions of a theme or plugin is not generally a recommended course of action for most users and could re-introduce security, stability or other issues in MailChimp Campaigns Manager

About our testing enviroment

Tests were conducted using Apache 2.4.29, PHP 7.2 on Ubuntu 18.04, MySQL 5.7.33 and WordPress 5.9

It is very possible that different versions of PHP such as PHP 8.0, PHP 7.4, or PHP 7.3 could behave differently with MailChimp Campaigns Manager. Different versions of WordPress could implement the features of this plugin in slightly different ways as well.