Forum Discussion
Using App Password to login to SharePoint Online CSOM
Is it possible to use app passwords to login to SharePoint Online CSOM based scripts? We need to run scripts unattended and thus, using Pnp web login is not an option. Anyone know of workarounds ...
It sounds like you might want to actually register your application as an Add-in in SharePoint and grant it app-only permissions via Azure AD (or simply via SharePoint) on your tenant.
https://docs.microsoft.com/en-us/sharepoint/dev/solution-guidance/security-apponly-azuread
https://docs.microsoft.com/en-us/sharepoint/dev/solution-guidance/security-apponly-azureacs