too many possibilities... what did you rule out from your search?
Is this a survey that has already been published? I have experienced several error code 400 problems and it usually gives you a little more detail. I have had an error code 400 invalid URL problem before. Does your error code give you anything else?
Hi,
I took the attached XLSForm and published it into my ArcGIS Online account. I then downloaded the survey into the Survey123 app to submit a couple of entries. I used Survey123 Connect for ArcGIS version 1.5.35 and the Survey123 app version 1.5.32. It all run smoothly. If you give some additional details on where you see the error that would help.
As Jarom Hlebasko indicated, you may be getting Error 400 while trying to publish your survey. Here are some tips to clean things up: Help with code: 400 Publishing Error - "folder title not available"
Thanks
Ismael
Thank you Survey 123 Team for replaying "now its working"
1. This morning I have downloaded the new version of survey123 and update the phone(Huawei P8) version also.
2 Change the name of the XLS form to "test"
3. Went to File on the Survey123 , browse for the XLS file and upload it
4. Publish the file and went to arcgisonline and shared it "Organization"
5. Download it to my phone and test it
Its working
Thank you Very much
Solly
Got it figured out!