The following javascript should do what you need:

mobicontrol.message.createYesNoDialog('Do you want to clear app data?').withCallback(onConfirm).show();

function onConfirm(result) {
    if (result.buttonIndex == 1) {
        ClearAppData('com.overvyoo.client');
        ClearAppData('com.dar');
        ClearAppData('net.soti.surf');
        ClearAppData('com.android.chrome');
    }
    else {
        mobicontrol.log.info('User chose not to clear the application data');
    }
}

function ClearAppData(MyApp) {
    var result = mobicontrol.app.installedApps.filter(app => app.packageName == MyApp).length;
    if (result > 0) {
        mobicontrol.app.clearData(MyApp);
        mobicontrol.log.info(MyApp + ' data wiped');
    }
    else {
        mobicontrol.log.info(MyApp + ' is not installed');
    }
}

I think you should be able to do this via javascript instead of legacy.

Just to add: You can implement this functionality entirely in the lockscreen template (would be then a Button or so to be tapped on) then, if you want instead of providing a seperate script (if you think it won't be changed and/or your template is not used somewhere else.

Hi Billy,
 
Thanks for posting on SOTI Pulse, Thanks Radim and Rafael
for responding to the post, your expertise and willingness to help are greatly appreciated!
 
Have you had an opportunity to test the suggested solutions by Radim and Rafael and has it successfully addressed your query?
 
If not, or If you have any additional questions or concerns, please don't hesitate to reach out. We're dedicated to providing assistance and support.

Hi Billy,
 
Thanks for posting on SOTI Pulse.
Thank you, Rafael and Radim, for responding to the post, your expertise and willingness to help are greatly appreciated.
We are glad to know that your issue has been resolved. If you have any additional questions or concerns, please don't hesitate to reach out. 
We're dedicated to providing assistance and support.