Problem with editing already submitted data

I cant edit submitted data
error that appears :
“Data server did not accept data.
Contact the survey administrator please. (400)”

@AnriCh, could you also kindly share with the community a screenshot of your issue so that the community should also understand and help you out?

Which server are you using, please? Is this a private one?

yes, its private server

Generally, endusers should first contact their administrator or project focal point, please, who will channel the communication with the Kobo forum.

Dear Anrich, Can you please check the uuid of the form? if it is duplicating? I face this error when i would like to edit the forms where uuid is duplicating.

I solve the problem , I try to redeploy the form , then this text appears : Unexpected KoBoCAT error 400: b’{“detail”:“The name column for the 'yg57n08' choice list contains these duplicates: 'mariupol_oblast'. Duplicate names will be impossible to identify in analysis unless a previous value in a cascading select differentiates them. If this is intentional, you can set the allow_choice_duplicates setting to 'yes'. Learn more: XLSForm.org”}’ , Than I find input that contained two same name and delete one . Thanks for help <3

Hello, I also encountered “Data server did not accept data.
Contact the survey administrator please. (400)” error while trying to edit submissions

On digging deep into the issue I narrowed down to the question name and label that I was using

The problem was caused by the use of the name “Model” as a question name, which I suspect to be a reserved keyword in the frontend framework used to develop Enketo. I changed the name to a different name “modua” the error went away and now I can do submissions and edit them as well.

If there are reserved key words for the fontend framework then they should be added to the documentation , I would like to hear from the Core Team on the same

Yes, beside the documentation, it would be great if the Online validator would check for reserved names and provide a specific error messsge.

Hint: The problem was discussed in the forum before, see Search results for 'model reserved name' - KoboToolbox Community Forum.

Thanks @wroos , I wasn’t aware of the earlier conversation on the same.

I am still having an issue editing forms deployed with the earlier version before I made the correction(Changing question name from Model to something else).

I guess there is away for me to change the name of the question name for the earlier versions that were saved as Model.

Are forms saved in table in the database, if that’s the case which table in which database

Any suggestion on the best solution to edit submission for the earlier version of the form?