Track multiple selection of a multi checkbox filed

[guru2000]

I have a Nintex form in SP 2016. There is a list lookup field that allows user to select multiple check boxes. However, I only want the user to check only one checkbox. How do I validate that?

I want to do the validation within the Nintex form - not using a workflow.

Thanks in advance.

Mayank

[MegaJerk]

Why not just change the Control from a Drop Down to Option Buttons?

That way, only ONE can be selected

[guru2000]

Thanks, but I need to make it multiple check box. I found the solution.

Add a Validation Rule:

length(SystemName) > 1

This rule shall fire if the user selects more than 1 item.

I found the solution from the following blog,

https://community.nintex.com/t5/Nintex-for-SharePoint-Forum/Nintex-Form-validation-on-multiple-check...

Mayank

[MegaJerk]

Please mark your answer as the solution to your problem

good to hear you solved it