This is the purpose of an Out parameter, that being said if the use case is addition or concatenation would a function be more fit for purpose?

Perhaps I oversimplified my problem statement. I will try to rephrase:

I have 2 web apps, each with its own adapter project. I have a 3rd project that is supposed to control the other 2. This 3rd project has a chain of 3 activities, each taking its input from the previous one:

A1=Read some values from the first web app

A2=Update web app 2 based on values harvested from the first

A3=Update web app 1 based on the result of the A2 (status of update).

I figured initially that activities are like functions: they take input and return some value as output. I was surprised that it isn't so, as far as I see. The thing that comes closest is the SetCompletionStatus for RobotActivity but I only use plain Activity.

So, is there a way to carry info from one activity to the next, w/o using the Context?

Thanks!

Can you try setting OutParam.

You can use the Output param

Yeah define a param in parameters tab and that should be Out param.

Thank you all for your comments. Where exactly is this Parameters tab? A screenshot woudl help :)

As far as I know you configure activities' parmeters in the Interactions.xml. Is there some syntax I could use to configure an Out parameter there?

It is also worth mentioning I am talking about the OpenSpan functionality (desktop automation), not the Pega on server side.