---
title: "Why has the data on my banner campaign changed?"
slug: "why-has-the-data-on-my-banner-campaign-changed"
description: "Campaign data can change because recipients still click after a campaign ends, or because its scheduled dates were changed. How to keep reporting accurate."
updated: 2025-10-15T18:57:19.000Z
canonical: "https://help.opensense.com/docs/why-has-the-data-on-my-banner-campaign-changed"
---

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

# Why has the data on my banner campaign changed?

## Overview

The reported data for a banner campaign can change. This usually happens for one of two reasons: recipients still engage with the banner after the campaign ends, or someone changed the campaign's scheduled dates.


## Why the data changes

<dl class="kb-insights-summary">
  <div><dt>Engagement after the campaign ends</dt><dd>When a banner campaign reaches its scheduled end date, it does not become inactive in every recipient's inbox right away. Recipients can still open emails with the banner and engage with it after the campaign expires. Your engagement data can then show new activity after the scheduled dates.</dd></div>
  <div><dt>Changes to the scheduled dates</dt><dd>Changing the start or end date of a banner campaign after you create it can have a large effect on your data. For example, if a campaign was scheduled from 9/1/25 to 10/1/25, and you later change the end date to 10/1/25 (after it expired), Opensense aggregates data for that one day only. Your report can then look like it lost data, or show unusual numbers.</dd></div>
</dl>


## Keeping your reporting accurate

:::caution[Don't change campaign dates after you create a campaign]
To keep reporting accurate and historical data intact, don't change a banner campaign's scheduled dates after you create it or after it expires. If you must change them, record the change for future reference and reporting.
:::

Following these practices keeps your campaign numbers consistent and avoids unexpected changes in your reports.

## What's next

- [Editing a banner campaign](https://help.opensense.com/docs/editing-a-campaign): change a campaign's schedule, tags, or categories.
- [Banner campaigns and marketing FAQ](https://help.opensense.com/docs/frequently-asked-questions-marketing): answers to other campaign reporting questions.