BuddyPress.org | Carlo Tafuro | Activity https://buddypress.org/members/carlotafuro/activity/ Activity feed for Carlo Tafuro. Fri, 10 Apr 2026 12:34:09 +0000 https://buddypress.org/?v= en-US 30 hourly 2 542b2392fd4e7460c6ee6e5b2612d7a3 Carlo Tafuro replied to the topic Allow Underscores in Username in the forum How-to & Troubleshooting https://buddypress.org/support/topic/allow-underscores-in-username/#post-270529 Thu, 01 Feb 2018 18:44:53 +0000 Here’s my solution:

add_filter( 'wpmu_validate_user_signup', 'my_wpmu_validate_user_signup' );

function my_wpmu_validate_user_signup( $result ) {

$underscores_error_message = __( 'Sorry, usernames may not contain the character "_"!', 'buddypress' );

$error_messages_array = $result[ 'errors' ]->get_error_messages('user_name');

if ( c…[Read more]

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