Make New Accounts Follows Specific Users.

yz-make-new-accounts-follows-specific-account.php

<?php

/**
 * Make New Accounts Follows Specific Users.
 */
function yzc_make_new_accounts_follows_specific_users( $user_id ) {

    // Get Leaders.
    $leaders = array( 2, 4 );

    foreach ( $leaders as $leader_id ) {
    
        // Get Follow Args.
        $args = array(
            'leader_id'   => $leader_id,
            'follower_id' => $user_id,
        );

        // Follow .
        bp_follow_start_following( $args );
    
    }

}
add_action( 'bp_core_signup_user', 'yzc_make_new_accounts_follows_specific_users' );