Planner upload failure: "Oops, upload failed." - Microsoft Community
i have team plan set have been tracking tasks , files related departmental projects. intermittently, receive occasional upload error fixed logging out , in. however, of around 4:00pm 2 days ago, started continually having error. whenever click on attach > upload file, receive following error message: "oops, upload failed." however, when try upload file again, second error message shown below ("upload fail. file name exists."). have not been able upload files 2 days now. can please tell me what's going on? using browse sharepoint not option us. thank you, -sonja hi castro, know issue has been resolved. below summary: ================ symptom: in planner, see “oops, upload failed” when uploading files local tasks. solution: related tem has provided fix planner resolve issue. ============ if have other questions feel free post new thread, continue assi