Hi,
Thanks for sharing your experience in our community.
Per your description, the OneDrive Save button and Folders in iPhone are grayed out, given your scenario, we are trying to test it in OneDrive version 12.19.5, as you can see, when I go to OneDrive and create a new document> it will show the Save page> click Save> Add Storage Account> OneDrive for Business> I can save it to OneDrive without problem.
May I confirm my steps are same as yours? If not, could you please point out and we will further investigate it.
To narrow down it, if you are not using the latest version of OneDrive for iPhone, please go to Apple Store and update it to see the result again.
Meanwhile, to better understand your scenario, could you please provide some information with us?
- What’s your OneDrive version? Go to OneDrive> Settings> scroll down to the below and provide the screenshot of version page.
- Please provide some screenshots about “OneDrive Save button and Folders grayed out”, if you receive any prompt, better to share with us.
- Do all files or just some certain ones cannot save normally? Including a new file?
- What do you mean “Save to Files” through the Files App?
We highly appreciate your effort to share the above information with us, we will try our best to help you troubleshoot it. 😊
Best regards,
Gloria