Microsoft Graph API returns 404 when querying SharePoint file by siteId, listId, uniqueId

1. Check if the resource exists 
Confirm site/list/file ID 
Check the URL in the SharePoint interface to make sure siteId, listId, fileId are correct 
Test if the site exists using GET /sites/{site-id} 
Check if the file has been deleted/moved 
Find it in the SharePoint Recycle Bin 
2. Verify permissions 
Check for API permissions 
Ensure application registration (Azure AD) is authorized Sites.Read.All or Sites.ReadWrite.All 
Administrator needs to agree to permissions (https://admin.consent.microsoft.com) 
Check user permissions 
Ensure user has read permissions to target files/lists 
3. Check API request format 
Correct format: 
GET /sites/{site-id}/lists/{list-id}/items/{item-id}/driveItem 
Common error: 
using list-title instead of list-id (need to be converted) 
Incorrect API version (should use v1.0 or beta) 
4. Solution 
 Fix API request 
http 
GET https://graph.microsoft.com/v1.0/sites/{site-id}/drives/{drive-id}/items/{item-id} 
drive-id = Document Library ID (can be used with GET /sites/{site-id}/drives/{drive-id}/driveItem}) drive-id = Document Library ID (available as GET /sites/{site-id}/drives) 
item-id = Document ID (available as GET /sites/{site-id}/drives/root/children) 
5. Check SharePoint Online status 
Access Microsoft 365 service status 
Verify that the SharePoint Online service is OK 
6. Test with Graph Browser 
Open Graph Browser 
Test API requests after login 
7. Advanced Debugging 
Check HTTP response header (x-msrequest-id) 
Grab packets using Fiddler/Postman 
View Azure AD Audit Logs (SignInLogs)