Do not select the same modality in multiple variables if it is selected once

[Kal_Lam]

@Aly, is it an issue for a select_one question type instead of the select_multiple question type?

If that is your requirement, then this post discussed previously should help you solve your issue:

How to filter out choices (in Q2) if something is selected in Q1 and include all the choices in Q2 if refused, don't know or have not decided is selected in Q1?

@Adebayoadek, you could do this as outlined in the image shared below: In the survey tab of your xlsform: [Image 1] In the choices tab of your xlsform: [Image 2] Data entry screen as seen in Enekto: when nothing is selected [Image 3] Data entry screen as seen in Enekto: when either refused is selected [Image 4] Data entry screen as seen in Enekto: when Alex is selected [Image 5] Reference xlsform: choice_filter.xlsx (53.7 KB)

If it’s an issue related to the select_multiple question type then the workaround shared by @Mandranto above should help you solve your issue.