Validate against duplicate entries within nested repeats

[Kal_Lam]

@dianedetoeuf, you should be able to do it as outlined in the post discussed previously:

Restrict choices already selected from a repeat group

Welcome to the community, @miguel! Maybe you could try this out as outlined in the image 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 Enketo: [Image 3] Reference xlsform: Restrict choices already selected from a repeat group.xlsx (11.2 KB)