Having workflow variables on catalog tasks has been possible for a long time in Service-now, but this functionality has never been applied to change tasks.
With some “simple” adjustments you can modify the change task definition to enable variables on these types of tasks.
This gives you the flexibility of configuring and capturing a different information set on a per task basis.

You need to have a couple of components in place:

  1. A workflow activity variable to capture variables per change task in the workflow designer
  2. A script to link the variables to the change task when the workflow is triggered
  3. A field/formatter to enable the display of the variables on the change task
  4. …and last but not lease, the variable itself

How you tie all of the above components together will be explained in the below paragraphs.
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