Code-Snippets-Functions/Execute a function on a child site/WP Migrate DB Pro/preserve-child-site-connect-options.txt

add_filter( 'wpmdb_preserved_options', function( $options ) {
    $opts = [
        'mainwp_child_uniqueId',
        'mainwp_child_pubkey',
        'mainwp_child_server',
        'mainwp_child_nonce'
    ];
    
    return array_merge($options, $opts);
});