How to prefill a select_one question based on the previously selected select_multiple question?

[Kal_Lam]

@bikky2044, you should be able to do it as outlined in the image shared below:

In the survey tab of your XLSForm:

In the choices tab of your XLSform:

Data entry screen as seen in Enketo: when nothing is selected in Q1

Data entry screen as seen in Enketo: when any two choices are selected in Q1

Data entry screen as seen in Enketo: when any three choices are selected in Q1

Reference XLSForm:

PreFill.xlsx (13.5 KB)