Exporting PST from shared mailbox Office 365 manually requires using the eDiscovery feature in Microsoft Purview (formerly Security & Compliance Center). First, you need to assign eDiscovery permissions, create a Content Search, add conditions to filter emails, export the search results, and then use the eDiscovery Export Tool to save the PST file. However, this process has several challenges, including complex permission settings, slow export speeds, the risk of data corruption, and difficulties handling large mailboxes. Additionally, non-technical users may find it overwhelming to navigate multiple steps and ensure data integrity. 

To simplify this, the Cigati Office 365 to PST Export Tool provides an efficient and automated solution. It allows users to export shared mailbox data to PST without requiring administrative privileges or complex configurations. The tool ensures faster processing, maintains folder hierarchy, and offers advanced filtering options to extract specific data. Moreover, it eliminates the risk of partial exports or data loss, making it a reliable alternative to the manual method. If you need a hassle-free and accurate way to export a shared mailbox to PST, Cigati Office 365 Export Tool is the ideal choice.