Constraints within multiple answer question - ERROR message

[Kal_Lam]

@tiana_anjara, this post discussed previously should help you solve your issue:

How to set a constraint (validation) while selecting a response from a Multiple Choice Question

Hi @anamikadutt, Would you mind trying out as outlined in the image below to control your none of the above response in a multiple choice question: 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: When entered correctly [Image 1] Data entry screen as seen in Enketo: When entry error is made [Image 2] Reference xlsform: Constraint.xlsx (12.6 KB) Have a great day!