---
title: "Idempotent external actions in Activities"
description: "How can you prevent duplicate business effects when an Activity retries?"
status: "coming-soon"
language: "en"
canonical: "https://bulnik.dev/en/articles/topics/T14.06/"
topicId: "T14.06"
---

> Coming soon — this article is being prepared. Below are its question, intended outcome, and place in the story.

## The question

How can you prevent duplicate business effects when an Activity retries?

## What we will work through

Prevent duplicate business effects when an Activity retries.

## Before you begin

Previously covered: Separating Workflow and Activity code; Idempotent HTTP operations.

- [Separating Workflow and Activity code](/en/articles/topics/T14.02/)
- [Idempotent HTTP operations](/en/articles/topics/T38.05/)