📄️ Custom Script
Custom Script lets you add small, C#-like snippets (the Script Language) inside a workflow action to do transformations, calculations, and branching that would otherwise need lots of low-code blocks or are not yet possible with the currently available action blocks. It’s a curated C#-style wrapper: only platform-approved types, properties, and functions are available, compiled to .NET at save time. You pass the snippet as one static string in the action.
📄️ Expressions
Expressions are a core mechanism in workflows, especially in Condition Action blocks, enabling dynamic evaluation of conditions and parameter values. They allow you to build logic directly into workflow actions without requiring a full script.