Modify external choices from device?

[Anonymous User]

Is it possible to modify an external choices list from the field app? I would like user to be able to enter a value on an initial survey, then select that value from a dropdown on subsequent surveys.  This is useful for a capture mark-recapture form where an individual animal is marked once then recaptured on subsequent days.  I'm coming from Pendragon Forms where this was trivial.   

[Anonymous User]

Hi Lucas,

No, this is not currently not supported or possible with Survey123.

With the 3.10 release we do now support custom JavaScript functions, which may help achieve a similar to workflow to what you are looking for, by querying data from a feature layer, however you can not edit or query data on the device in the apps survey data folder.

https://community.esri.com/groups/survey123/blog/2020/08/07/extending-survey123-smart-forms-with-cus... 

Regards,

Phil.