> ## Documentation Index
> Fetch the complete documentation index at: https://moengage.com/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Why Are Cards Getting Auto-Duplicated While Editing?

> Fix auto-duplicated cards in periodic campaigns by adjusting the card expiry setting under Display Controls to prevent overlapping child campaigns.

## Problem

Cards are getting auto-duplicated while editing Card campaigns.

## Explanation

This problem can occur when you configure a periodic campaign to expire each card in a specific number of days after a user has seen it. As a result, a new child card campaign appears each day, while the previous cards remain for the same number of days.

## Solution

To avoid duplication of cards:

* While defining the Card campaign's delivery schedule and goals, under the Display Controls section, ensure that the **Day(s) after user has seen the card** option under Card expiry is configured to 1.
* In the following example, the option is set to 100, which must be set to 1.

<img alt="Card expiry.png" src="https://mintcdn.com/moengage/cFTwc93vQdTanvKi/images/moengage_bdc455.png?fit=max&auto=format&n=cFTwc93vQdTanvKi&q=85&s=9245138c7ee830dcabd68188190d2ffa" width="1870" height="1200" data-path="images/moengage_bdc455.png" />