An integrated threat protection solution designed to detect, investigate, and respond to cyber threats across Microsoft 365 services.
Hello Mukesh,
Thank you for your response.
I tried creating a custom login page using the steps mentioned in the document shared by you and received the same error.
However, the same did not occur with the Microsoft curated pages.
Perhaps it might be something to do with the code of the custom webpage.
Kind regards,
LunaticOP