Calculate the error to detect a single head of household

[Kal_Lam]

Welcome back to the community, @konanstephanenekoffi! This post discussed previously should help you solve your issue:

How to restrict the data with only one Head of Household from within a household survey?

Hi @Mumlaqs, Please tryout as shown in the image below to restrict your data with only 1 (or with at least 1) head of the household from within your household roster survey form. In the survey tab of the xlsform: [Image%201] In the choices tab of the xlsform: [Image%202] Reference xlsform: Head of the HH.xls (29 KB) GOOD DAY!