# Assignment History

## Get operation assignment history

 - [GET /v1/operations/{operation_id}/assignments/history/](https://docs.adm.wearetransformers.nl/apis/schema/assignment-history/v1_operations_assignments_history_retrieve.md): Returns the assignment version history for a specific operation.

        Shows all historical assignment states with timestamps, who made
        the assignment, and field-level diffs between versions.

        If X-Workspace-Id header is provided, includes workspace draft
        assignments merged with mainline history. Workspace drafts appear
        alongside mainline assignments (not replacing them).