![]() ![]() To understand the problem, we must have an understanding of the authentication process for Microsoft Purview Information Protection. Azure Active Directory conditional access and guest users are. ![]() This is correct and the identities of these users are not the problem. And using an Azure AD (or Microsoft Live) account is required for encrypted documents to be decrypted. And in no time, this error message is displayed. When the user tries to open the document, Information Protection tries to ascertain the permissions. The document is stored in SharePoint Online and then shared with the user for organization Y (and also using email). Both organizations use Microsoft 365 and are therefore using Azure Active Directory. These permissions include a user from organization Y. This sheet is labeled as “Highly confidential” and user-defined permissions are assigned. The scenario is easy enough:Ī user from organization X creates an Excel sheet. The focus of this article is on Microsoft Purview Information Protection (or Microsoft Azure Information Protection) and how encryption affects the end-user. Also, I’ve written an article earlier on the subject of Azure AD accounts and the new B2B Collaboration options which are described below. ![]() To be fair and upfront the information in this article is also available from Microsoft Learn. ![]() But working securely and easily is not always as straightforward. And Microsoft 365 offers a lot of (secure) options for this. Seamless B2B collaboration is crucial for most organizations these days. But Office now tells me: “User-account from identity provider ‘b.com’ does not exist in tenant ‘abc’. I’m just trying to open a document that was sent to me. ![]()
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