Управление типом ссылки по умолчанию на уровне коллекции сайтов

In SharePoint Online, Default sharing link types and Default sharing link permissions are now available to be customized per site collection. We’ve begun rolling this out now, and it will be available worldwide by the end of June. While our goal is to ensure we notify you in advance of upcoming changes, we acknowledge we did not provide timely notice for this change. We will continue to look for ways to improve our notifications.

Больше информации: Изменение типа ссылки, создаваемой по умолчанию