Prevent new user creation when Mailchimp subscriber change email

Answer to myself:

The “new user creation” is define at the end of file ‘mailchimp-sync.php’ inside the mailchimp_sync_webhook_user filter.
As it’s define through a anonymous function I didn’t find a clean way to override it.
The only solution I could find was to use ‘remove_all_filter’ and re-define a new custom filter.

// Remove default webhook filter to avoid automatic user creation -> 'mailchimp-sync.php'
remove_all_filters( 'mailchimp_sync_webhook_user', 10 );
// define custom mailchimp_sync_webhook_user callback
add_filter( 'mailchimp_sync_webhook_user', 'filter_mailchimp_sync_webhook_user', 10, 2 );
function filter_mailchimp_sync_webhook_user( $user, $data ) {
// action you want goes here
}

• This reply was modified 6 years ago by Lautobus.
• This reply was modified 6 years ago by Lautobus.
• This reply was modified 6 years ago by Lautobus.