Client Scripts — Implementation Workflows

Step-by-step workflows for building client-side form features. For exact API syntax, see frappe-syntax-clientscripts.

Version: v14/v15/v16 | Note: v13 renamed "Custom Script" to "Client Script"

Quick Decision: Client or Server?

MUST the logic ALWAYS execute (imports, API, Data Import)?
├── YES → Server Script or Controller
└── NO  → What is the goal?
         ├── UI feedback / UX → Client Script
         ├── Show/hide fields → Client Script
         ├── Link filters → Client Script
         ├── Data validation → BOTH (client for UX, server for integrity)
         └── Calculations → Client for display, server for critical