Managing cascading select questions for a very large question choices

[Kal_Lam]

Have you had a look at our workaround discussed previously (it should solve your issue):

Select_one choice filter from another select_one

Hi @esmatullaharifi, Welcome to the community! You could design your survey form with the cascading select question to get what you have tried for by following the support article here. As a backup you could also have a look at the post that has a simple workaround that should help you understand the concept of cascading select question: But looking at your xlsform, i see there are more then 800 choices which should affect your data entry performance. Thus a solution for this could be design…