frappe-syntax-hooks-events

Use when implementing document lifecycle hooks via doc_events in hooks.py, understanding event execution order, or extending/overriding document behavior from another app. Prevents silent hook failures from wrong event names, incorrect execution order assumptions, and broken override chains. Covers doc_events hook syntax, all document events (before_insert, validate, on_submit, etc.), event execution order, extend vs override behavior, cross-app doc_events. Keywords: doc_events, hooks.py, before_insert, validate, on_submit, on_cancel, lifecycle, document events, override, extend, event order, which event fires when, before_save vs validate, document event list..