Are attributes case-sensitive in Architect workflows?

Yes, attributes used in Architect workflows are case-sensitive. When you reference an attribute in an Architect workflow, use the exact letter case as it appears in the event schema of the trigger that you want to create. 

If you use incorrect capitalization for an attribute, the workflow may not function as expected. The condition may not evaluate correctly, leading to unexpected results or errors.

For more information, see Overview of triggers.