Updated June 10, 2025: We have updated the timeline below. Thank you for your patience.

We are updating the storage location for Whiteboards created from the Teams Channel Tab App. Previously, these whiteboards were saved on the initiator's OneDrive, which caused access issues due to sharing settings, information barriers, or conditional access policies. To resolve these issues and align with the behavior of other M365 apps, whiteboards initiated from the Teams Channel Tab App will now be stored in the corresponding SharePoint site of the Teams Channel (also known as the channel site). This change ensures seamless access for all channel members while adhering to set policies.