AX7: Delete a User Session in the WHS Mobile Device Portal

One and a half year ago I posted an article which showed how to reset a user session in the Mobile Device Portal inside of the AX WHS module. Today I want to post an update on this issue and show you how to do that in AX 7 / Dynamics 365 for Finance and Operations.

Good news up front – there are only two rows to change!

TLDR: Delete the line realated to your WHSUserId in the WHSWorkUserSession table, to completly reset your user session.

Like last time,  we create a new class which extends RunBase.


class WHSUserSession extends RunBase
DialogField fieldWHSUserId;
view raw WHSUserSession hosted with ❤ by GitHub


Add a main method and get your dialog being prompted.

static void main(Args args)
WHSUserSession userSession = new WHSUserSession();
if (userSession.prompt())

As we still want to select the WHSUserId we will override the lookup method, like we did it in AX 2012.

Here you can see the two changes that I did, to run the AX 2012 code in AX 7. First we have to align the access modifier, I just set it to public.

Next we want to reference a FormBuildStringControl instead of a FormStringControl, else we get a cast error.

public Object dialog()
Dialog dialog;
FormBuildStringControl control;
dialog = super();
dialog.caption("WHS: Reset user session");
fieldWHSUserId = dialog.addField(extendedTypeStr(WHSUserId), "Select User");
control = fieldWHSUserId.control();
control.registerOverrideMethod(methodStr(FormStringControl, lookup),
methodStr(WHSUserSession, lookup), this);
return dialog;

Now the lookup override, exactly the same like it was in AX 2012.
public void lookup(FormStringControl _control)
Query query = new Query();
QueryBuildDataSource queryBuildDataSource;
SysTableLookup sysTableLookup = SysTableLookup::newParameters(tableNum(WHSWorkUserSession),
sysTableLookup.addLookupField(fieldNum(WHSWorkUserSession, UserId));
sysTableLookup.addLookupField(fieldNum(WHSWorkUserSession, InventLocationId));
sysTableLookup.addLookupField(fieldNum(WHSWorkUserSession, LastActionDateTime));
queryBuildDataSource = query.addDataSource(tableNum(WHSWorkUserSession));
view raw lookup hosted with ❤ by GitHub

And the actual reset, also unchanged.
private void resetUserSession()
WHSWorkUserSession workUserSession;
if (fieldWHSUserId.value())
workUserSession = WHSWorkUserSession::find(fieldWHSUserId.value(), true);
if (workUserSession)
if (workUserSession.validateDelete())
throw Exception::Error;
catch (Exception::Error)
error(strFmt("Could not delete user session data for userId %1",
error(strFmt("UserId %1 not found!",

Delete the WHS User Session in AX 7:

Like you will see, the dialog window changed slightly but the function is still the same.

AX7 WMDP Delete User Session

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