About mobile number in decimal issue

[Kal_Lam]

Maybe you could have created your xlsform using the regex code to restrict users while inputting 10 digits as outlined in the post discussed previously:

How to limit my id number entry to 10 characters?

Hi @PamelaLlanes, Try using the regex code regex(., '^[0-9]{10}$') with the question type as text. A similar example has already been discussed in the forum: To learn more on regex please feel free to visit our support article Restricting text responses with regular expressions. Have a great day!