Graph API: Add OData $filter support for Planner Tasks (e.g. /me/planner/tasks)
Currently it's not possible to filter tasks using the Microsoft Graph REST endpoints for Planner.
E.g. this does NOT work, but should:
Currently the filter parameter will be ignored, all tasks are returned instead.
We are currently discussing this in our planning meetings. This is not currently agreed to be placed on our backlog as yet. ^JT
Brian Smith commented
You might also want to post to the Planner UserVoice too Heinrich - https://planner.uservoice.com/forums/330525-microsoft-planner-feedback-forum