Import PST to Office 365 Online Archive - PST Importer
To Import PST files to Online Archive in Office 365 manually, you can use the Network Upload or Drive Shipping method. The Network Upload process involves uploading the PST file to Azure Storage and using the Import Service in the Microsoft Purview compliance portal. This requires configuring an SAS URL, and mapping the PST files to user mailboxes using a CSV file. The Drive Shipping method requires sending a physical hard drive containing PST files to Microsoft. These methods can be complex, time-consuming, and prone to errors such as incorrect mappings, file size limitations, and network constraints.