Using Gravity Forms ‘gform_mailchimp_lists_params’ PHP filter

The gform_mailchimp_lists_params filter allows you to modify the request parameters when getting MailChimp lists/audiences in the Gravity Forms Mailchimp Add-On.


add_filter('gform_mailchimp_lists_params', 'my_function');


  • $params (array): Contains the parameters being sent. Example: $params = array('start' => 0, 'limit' => 100);

More information

See Gravity Forms Docs: gform_mailchimp_lists_params


Increase limit

This example increases the maximum number of lists/audiences that can be retrieved.

add_filter('gform_mailchimp_lists_params', function($params) {
    $params['limit'] = 200;
    return $params;

Note: Place this code in the functions.php file of your active theme.

This filter was added in Gravity Forms version 3.0.

The source code for this filter is located in class-gf-mailchimp.php.