Validating Roll Numbers

User Support Form Building
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2

Hi @anamikadutt,

Welcome to the community! You could do the same by using constraint and constraint_message as outlined in the image below:

In the survey tab of the xlsform:

image
image857×191 5.8 KB

Reference xlsform:
Roll Number (constraint).xlsx (10.4 KB)

HAVE a GREAT DAY!