How to call instance variable instance.vars.xxx in one workflow in to another workflow sub query activity?

[rvnth]

Hi team, 

In workflow wkf1, I have declared the instance variables. Now, I want to use these instance variables in a subQuery activity (with wkf1 added as the template) within another workflow, wkf2.

When I attempted to generate the instance variables in the alert email from wkf2, the variables declared in wkf1 appeared as undefined in the alert email.

Thank you in advance

[ALangridge · Accepted solution]

Hello! Instance variables are connected with the workflow itself - if you want to make variables accessible within a subworkflow pass in event level variables with vars.myVariableName on that specific arm of your workflow. 

"The event variables (vars.xxx) enable the exchange of data between the elementary tasks of a workflow process. These variables are passed by the task that activated the task in progress. ... They are then passed to the following activities."

https://experienceleague.adobe.com/en/docs/campaign-classic/using/automating-with-workflows/advanced...