Cascading selects for a list of approximately 600 choices

[Kal_Lam]

@giangiax, if you have a long list of choices, and you wish to make a cascading select question for the same you could design it using the select_one_from_file as outlined in the post discussed previously:

Cascading Select and External File

Welcome to the community, @bird_rao! Please be informed that the select_one_from_file should work with both your Web Form as well as Collect android app. Maybe you should also be able to see a workaround discussed previously here: As an alternate, you could also use the select_one_external to cascade your long list of choices as outlined in the post discussed previously: