Hi PSandor,
Thank you for contacting Microsoft!
As mentioned in the above call https://graph.microsoft.com/v1.0/me/onenote/sections/{section_id}/pages
for a specific notebook section, the 504 is often a gateway timeout error. Can you try using $top
query parameter to paginate the results which can help reduce the amount of data being returned and avoid timeouts. Also try implementing retry logic in your application to handle transient errors gracefully. This can help manage temporary issues that might be causing 504 errors.
As you are on a family subscription, consider providing feedback through Microsoft Graph API feedback forum. Even without a support ticket, your input can help Microsoft address these issues.
Hope this helps.
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