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Dear Leonard,
Good day!
Thank you for posting to Microsoft Community. We are glad to assist!
Based on your description regarding "How to stop the Authenticator app code asking, after I have put my mail and password?". Kindly note this is very sensitive and should not be discussed here in a public forum which is accessible to all Microsoft customers. We value your organization’s security and privacy; hence we suggest you to kindly contact your IT or company Admin to disable Multifactor authentication for you. Set up multifactor authentication for users - Microsoft 365 admin | Microsoft Learn
In the meantime, I would like to share some information with you, since we have dedicated support team for Microsoft Authenticator related query. So, we would recommend you to kindly post your query to Microsoft Authenticator support Forum via Microsoft Authenticator - Microsoft Q&A Engineers who are dedicated into Microsoft Authenticator with rich experience and more resources can then assist efficiently. We believe they would conduct in-depth research on the problem you encountered and provide you with more professional assistance.
Thanks for your understanding! Your patience and cooperation will be highly appreciated. I wish you all the best!
Best regards,
Inema | Microsoft Community Moderator