Hi Corne,

Yes, it is possible. To alter a process variable you need to use a Process Procedure on a previous process flow step. (Process procedures are always activates after executing a process action.)

You can enable 'Use process procedure’ here:
 

This will enable you to create a Control procedure with codegroup 'PROCESSES’ and assign it to the process action. Be sure to sGenerate code group] to see the Program Object.

In the template you will be able to alter Process variables to your liking:

Also be sure to set the variable for Follow-up process actions. Otherwise the process flow might go different paths than you intent. For example:

if @string is not null
begin
   set @execute_task_start_connection_http_connector = 1
end

This way, if your variable is filled, the http connector will the following action.

Hope this helps you out! If you have any questions, let me know.

Kind regards,
Mark Jongeling

Thanks for your quick response!

I get this error by adding the this code:

 set @execute_task_start_connection_http_connector = 1

Hey Corne,

My code was an example based on my test and will not function in your situation. The variable I set is this one:
 

To​​​ make it work for you, you should set this variable:

So that would mean the code should look a bit like this in your case:

if @json_input is not null
begin
   set @execute_task_test_json_http_connector = 1
end

Kind regards,
Mark Jongeling

That was stupid of me Thanks!