topic Re: Passing parameters in Supporting Tasks in QlikView

Passing parameters in Supporting Tasks

Mon, 26 Jan 2026 18:19:17 GMT

Hi,

Is there any way to pass parameters to a Supporting Task defined as an external program?

Currently we have:

-Task A (External Trigger)

--- Supporting Task B (after Task A finishes)

Task A is triggered by EDX with one variable passed: myVar = 1

When Task B runs the external program, I'd like to use the myVar value passed before, so I could execute "C:\MyExternalCommand.exe /myVar=1"

Is this possible?

Thanks

Re: Passing parameters in Supporting Tasks

Wed, 28 May 2014 20:33:25 GMT

In plain, no.

The taskchain in Publisher can only exacute on Success or failure.

So it won´t rrecognize if a trigger has excuted on a varible, it only execute on state on the task

Re: Passing parameters in Supporting Tasks

Wed, 30 Sep 2015 12:25:37 GMT

I would like to have parameter support as well, at least built in parameters.

I have a notification script, which I want to run on failure.

I'm missing two things:

1) A trigger that globally triggers on _any_ failure (or success).

With the current implementation I have to add one trigger for every task I want to monitor.

Or at least a way to select multiple tasks in one trigger.

2) Variables that I can use when calling the external program, for example $triggeringTaskName

With the current implementation, I have to add one external task for every task I want to check and do a unique execution for.

Current setup, 3x supporting tasks

Trigger: Failure Task1

Command line statement: d:\failscript.exe "Task name 1"

Trigger: Failure Task2

Command line statement: d:\failscript.exe "Task name 2"

Trigger: Failure Task3

Command line statement: d:\failscript.exe "Task name 3"

Wanted scenario

Trigger: Any-Task-Fails

Command line statement: d:\failscript.exe $triggeringTaskName

Re: Passing parameters in Supporting Tasks

Peter_Cammaert — Thu, 01 Oct 2015 09:07:48 GMT

If you operate a Publisher, you can assign three or more triggers "on Failure" to a single Supporting task.

Passing QMC parameters to a Supporting task is not possible. In that case you're better off with three task definitions because you can embed the failure details in the command line.

Peter

Re: Passing parameters in Supporting Tasks

Anonymous — Fri, 02 Oct 2015 06:00:40 GMT

Hello!

Yes, I can assign multiple triggers, but then my receiving script won't know which trigger that was triggered?
I operate a publisher, how do I embed the failure details in the command line? I (quickly) read the help but did not see that?
Finally, my example was just an example, in reality i have 100+ tasks, and adding/maintaining triggers for all of them is a hassle. Therefore a */catchall "on failure" with a parameter of which task that failed would be a really nice thing to have.

Thanks for taking your time to reply.

/Sebastian

Re: Passing parameters in Supporting Tasks

Peter_Cammaert — Fri, 02 Oct 2015 13:24:50 GMT

True, that's the tradeoff for not having to create 100+ additional and almost identical failure registration tasks.
I don't know. You are free to put anything in the command line that is acceptable to the program you try to run. Suppose your command line says something like this: C:\Program Files\Report\Report.exe -msg="ABC", then you can adjust the msg parameter for every other task you need to trigger. Of course this only works if you keep to the 100+ additional failure registration tasks.
I do believe that this is a major hassle. But unfortunately there is no standard solution available as you describe. Maybe you can request a new QlikView Server feature in Ideas

I guess you could use the management API to create a task monitoring tool that checks for task failures and reports them in a generalized way. But I'm sure that building your own tool is part of range of possible solutions you are envisioning...

Best,

Peter

Re: Passing parameters in Supporting Tasks

Tue, 06 Oct 2015 09:40:26 GMT

Thanks for your reply!

I "solved" this by using the "email on error" feature instead, using IFTTT - Make Your Work Flow to relay the mail to the service(s) I want to use

Only problem is that I get another system in between, but still better than nothing.