list-planner-task-messages
list-planner-task-messagesGet messages from a Planner task's chat, distinct from legacy comments. Each message includes content, author, timestamp, mentions, and reactions.
Instructions
[beta] Retrieve a list of plannerTaskChatMessage objects associated with a plannerTask.
💡 TIP: Lists messages in a Planner task's chat — the modern Planner 'task chat', distinct from the legacy conversationThreadId comments (which live in the M365 group conversation thread). Each message has id, content (HTML), createdBy, createdDateTime, mentions, reactions. BETA Graph API: subject to change; delegated work/school accounts only — no application permissions, no personal Microsoft accounts, global cloud only (not GCC/DoD/21Vianet).
Input Schema
| Name | Required | Description | Default |
|---|---|---|---|
| top | No | Page size (Graph $top). Start small (e.g. 5–15) so responses fit the model context; raise only if needed. Use $select to return fewer fields per item. For more rows, use @odata.nextLink from the response instead of a very large $top. | |
| skip | No | Items to skip for pagination. Not supported with $search. | |
| count | No | Set true to enable advanced query mode (ConsistencyLevel: eventual). Required for complex $filter on flag/flagStatus or contains(). | |
| expand | No | Navigation properties to inline, e.g. attachments on a message or event. Only navigation properties can be expanded: expanding a non-navigation property such as a message body fails with "Parsing OData Select and Expand failed", and an unsupported value may be ignored rather than reported. Request ordinary fields with $select instead. | |
| filter | No | OData filter expression. Add $count=true for advanced filters (flag/flagStatus, contains()). Cannot combine with $search. | |
| search | No | KQL search query — wrap value in double quotes. Cannot combine with $filter. | |
| select | No | Comma-separated fields to return, e.g. id,subject,from,receivedDateTime | |
| orderby | No | Sort expression, e.g. receivedDateTime desc | |
| fetchAllPages | No | Follow @odata.nextLink and merge up to 100 pages into one response. Can return enormous payloads—only when the user explicitly needs a full export. Prefer a small $top first, then paginate or narrow with $filter/$search. | |
| plannerTaskId | Yes | Value for the 'plannerTaskId' path segment. Pass it under the name 'plannerTaskId', not as 'id'. Use the 'id' field of the planner task object as returned by Microsoft Graph. | |
| includeHeaders | No | Include response headers (including ETag) in the response metadata | |
| excludeResponse | No | Exclude the full response body and only return success or failure indication |