diff --git a/backend/onedrive/onedrive.go b/backend/onedrive/onedrive.go
index 10a06dfd6..6a8c2e78e 100755
--- a/backend/onedrive/onedrive.go
+++ b/backend/onedrive/onedrive.go
@@ -1032,7 +1032,13 @@ func (f *Fs) Copy(ctx context.Context, src fs.Object, remote string) (fs.Object,
 		return nil, fs.ErrorCantCopy
 	}
 	if f.driveType != srcObj.fs.driveType {
-		fs.Debugf(src, "Can't server-side copy - not both drives are OneDrive Personal")
+		fs.Debugf(src, "Can't server-side copy - drive types differ")
+		return nil, fs.ErrorCantCopy
+	}
+
+	// For OneDrive Business, this is only supported within the same drive
+	if f.driveType != driveTypePersonal && srcObj.fs.driveID != f.driveID {
+		fs.Debugf(src, "Can't server-side copy - cross-drive but not OneDrive Personal")
 		return nil, fs.ErrorCantCopy
 	}