Restrict an entry with upper case and special characters while entering a form

[Kal_Lam]

Hi @PEHAN,

Welcome to the community! You could do the same following the instructions outlined below:

In the survey tab of your xlsform:

Data entry screen as seen in Enketo: With a wrong entry

Data entry screen as seen in Enketo: With a correct entry

Reference xlsform:
UPPER CASE (Regex).xlsx (10.1 KB)

Have a great day!