Change stream · Microsoft Graph known issues
layoutType property returns null when listing all channels
Publication date not supplied · Microsoft Graph
Source excerpt
The layoutType property returns null when listing all channels. To get the layout type of a specific channel, use the Get channel API.
A short excerpt. Read the linked source for the full article and context.
Guidance for this product
Monitored guidance in the same product area; this does not establish that the article cites each page.