The way to add variables in the tasks without having to go through the workflow slush bucket (Catalog task activity)
There are two ways to add the variables on the catalog task
1. Through the catalog task activity on the workflow .
2. Changing the Global field to 'True' on the variable.
Steps to change the Global field to True.
- Open catalog item - Scroll down to the Variables related list
2. Add 'Global' field to the list view using gear icon
3. Select all and set Global field to 'true'.