The Problem: Identity String Mismatch
The native Confluence Importer for Notion relies on a strict 1:1 email string match to attribute page history, "Created By" metadata, and in-line @mentions.
Because the source identities exist as user@unleash.so and the destination identities exist as user@zendesk.com, the importer will fail to recognize the users. Without manual intervention or source-data alignment, the importer will default all migrated content—thousands of pages and edits—to the Admin account performing the import, permanently erasing the historical context of who authored the documentation.