How to do Multi-factor auth with SharePoint-Online CSOM

Question

Using just a password-based authentication, it's easy to authenticate in CSOM from my C# application: context.Credentials = new SharePointOnlineCredentials(username, password); But how to authenticate when Multi-factor authentication (MFA) is activated? Since the MFA was activated in the tenant, i get the error: The sign-in name or password does not match one in the Microsoft account system Microsoft.SharePoint.Client.Idcrl.IdcrlAuth.GetServiceToken Is there any way? I´ve read about using APP PAssword, but the new password created doesn´t work from C# code Thanks.

Rajanikant Hawaldar · Answer

Are you looking for this? correct me if understand wrong https://social.msdn.microsoft.com/Forums/en-US/0c01bfa0-2943-483f-904e-9f2af60f6d7b/multifactor-authentication-on-csom-with-sharepoint-online?forum=sharepointdevelopment https://stackoverflow.com/questions/25969814/how-to-do-multi-factor-authentication-with-sharepoint-online-using-csom https://gist.github.com/vman/37bab1e1d700be238011f1de23a3e275 https://www.c-sharpcorner.com/blogs/using-csom-to-connect-to-a-sharepoint-site-with-multi-factor-authentication-enabled

Jose Carrillo · Answer

Dear Rajanikant, thank you for your answers. We have to use the SharePointPnPCoreOnline. Another solution is using App Only autentication : https://www.c-sharpcorner.com/article/connect-to-sharepoint-online-site-with-app-only-authentication/ King Regards.