I am not able to open my SharePoint online site in SharePoint Designer 2013. It is giving below authentication error while trying to open the site "Your account is in a bad state. Please sign-in to this account online to address the issue". Site is working fine in browser and I am also able to access it via browser. I am site owner. Please suggest some solutions.
To use SharePoint Designer 2013 with SharePoint Online, you can download and install the following updates in order:
Download and Install SharePoint Designer 2013
After installing the above updates, test again, it should work well.
In my case I needed to supply an App Password for SPD to work with SPO.
Security & privacy (left nav)
Click on Additional security verification
Click on Create and manage app passwords
On the next page I created an entry titled SPDYear and used that password for SPD.
P: app password