Resuming an approval sends an email twice. Why?
Practice this question- The interrupted node may restart, so a send before the interrupt can execute again.
- I move sending behind validated approval into an idempotent business operation and reconcile the send key/receipt on retries.
Adapted from 13_AI.MD · “29.7 LangGraph”. Code examples are study fragments. Difficulty and core labels are editorial estimates; version-specific behavior should be checked against your project.