Microsoft Planner ↔ Linear Bridge Reference: https://learn.microsoft.com/en-us/graph/api/resources/planner-overview Auth App-only (client credentials) flow: - , , - Token endpoint: - Scopes (admin-consented): , , , (for attachment mirror) Tokens expire at 60 min; refresh proactively at 50 min. Delta queries (efficient incremental sync) Initial bootstrap: Returns first batch + (for paging) and eventually (the cursor). Subsequent polls: Returns only changed tasks since the last call. The bridge stores per plan in . TTL is 30 days; on expiry, full re-bootstrap. Mapping table | Planner field | Li…