Григорий Коваленко

function setClipboard(text) {
    const type = "text/html";
    const blob = new Blob([text], { type });
    const data = [new ClipboardItem({ [type]: blob })];
    navigator.clipboard.write(data).then(
        function () {
            console.log('/* success */');
        },
        function (err) {
            console.log(err);
        }
    );
}

$prms = array(
        "id" => $idLead,
        "fields" => array(
        "UF_CRM_1622919648" => 1,
    ),
);

$prms = json_encode( $prms );
$result = bx24( $prms, 'crm.lead.update' );

function bx24( $params, $type, $portal = '*', $admin_id = '*', $secret_code = '*' ) {

$queryUrl = 'https://' . $portal . '.bitrix24.ru/rest/' . $admin_id . '/' . $secret_code . '/' . $type;
$params = json_decode( $params, true );

$queryData = http_build_query(
    $params
);

$curl = curl_init();

curl_setopt_array( $curl, array(
    CURLOPT_SSL_VERIFYPEER => 0,
    CURLOPT_POST           => 1,
    CURLOPT_HEADER         => 0,
    CURLOPT_RETURNTRANSFER => 1,
    CURLOPT_URL            => $queryUrl,
    CURLOPT_POSTFIELDS     => $queryData,
) );

$result = curl_exec( $curl );

curl_close( $curl );
}

PHP, HTML и CSS

$prms = array(
    "id" => id_deal,
    "fields" => array(
        "id_field" => 'value',
    ),
);
$prms = json_encode( $prms );
$result = bx24( $prms, 'crm.deal.update' );

function bx24( $params, $type, $portal = '***', $admin_id = '***', $secret_code = '****' ) {
$queryUrl = 'https://' . $portal . '.bitrix24.ru/rest/' . $admin_id . '/' . $secret_code . '/' . $type;
$params = json_decode( $params, true );
$queryData = http_build_query(

		$params
	);

	$curl = curl_init();
	curl_setopt_array( $curl, array(
		CURLOPT_SSL_VERIFYPEER => 0,
		CURLOPT_POST           => 1,
		CURLOPT_HEADER         => 0,
		CURLOPT_RETURNTRANSFER => 1,
		CURLOPT_URL            => $queryUrl,
		CURLOPT_POSTFIELDS     => $queryData,
	) );

	$result = curl_exec( $curl );
	curl_close( $curl );

	return json_decode( $result, 1 );
    }
?>

Синтаксис: =addworkdays([дата, к которой будут добавляться дни], [количество добавляемых рабочих дней])