ERPNext Permissions - Error Handling

This skill covers error handling patterns for the Frappe permission system. For permission syntax, see erpnext-permissions. For hooks, see erpnext-syntax-hooks.

Version: v14/v15/v16 compatible

Permission Error Handling Overview

┌─────────────────────────────────────────────────────────────────────┐
│ PERMISSION ERRORS REQUIRE SPECIAL HANDLING                          │
├─────────────────────────────────────────────────────────────────────┤
│                                                                     │
│ Permission Hooks (has_permission, permission_query_conditions):     │
│ ⚠️ NEVER throw errors - return False or empty string                │
│ ⚠️ Errors break document access and list views                      │
│ ⚠️ Always provide safe fallbacks                                    │