Hello,

you’re right, there is nothing in K2 to track a datalabel value, except its OnChange event.

By the way, the datalabel value could be changed only by an action from a rule, so there is something somewhere in the form. A common thing is when accidentally there is a checkbox selected in the settings for the transfer data action. You can try to examine all rules and see where the datalabel is set. To easily find these rules, create a copy of a form\view in a temporary category (Save as, and if it’s the form, make sure you’re duplicating all views, in this case you must specify new names) and then delete the datalabel. K2 will check dependencies and will show a warning with all the places where the datalabel is used. Then you need to check these rules manually.

Also, check if the datalabel has an expression connected.

Anyway, there is a help article regarding out of the box debugging worth to check: https://help.nintex.com/en-us/nintexautomation/userguide/5.7/content/Create/Forms/DebuggingForms.htm 

but i think that manual approach would be easier\faster in your case.

Tracking values of anything in a form is made so much harder … as there is only one way to see the value during runtime ie message boxes… 

I think if there was proper debugging the speed of development would increase twice fold. 

Most of the Issue in K2 is values changing in a properties unexpectedly and you have to track which rule is interfering.

Is there maybe any external tool you can use?  

Thanks  

You can add an idea as described here: 

Some time ago I saw an external smartforms debugging tool from a partner, do not rememebr details and not sure if it’s still available.