> For the complete documentation index, see [llms.txt](https://guide.wiseapp.co.kr/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://guide.wiseapp.co.kr/lang/eng/notices/2025/11-19.md).

# November 19 : \[WISERETAIL] Advance Notice of Changes to the Data Collection Method

Hello,

We would like to inform you in advance about changes to the data collection method as the WISERETAIL panel expands.\
This update will take effect on <mark style="color:blue;">Tuesday, December 30, 2025 (KST)</mark>.

The changes are as follows:

### Changes to the Data Collection Method <a href="#undefined" id="undefined"></a>

**1) Data collection method**

* **Survey Target** : South Korean
* **Analysis Target** : Credit Cards, Debit Cards
* **Panel Composition** : 10,000,000+ panelists
* **Population Definition** : The target population is estimated by applying gender- and age-specific payment amounts of credit cards, debit cards, based on studies conducted by the Bank of Korea and financial institutions on payment behavior.

**2) Data Update Scope**

* **Coverage** : All Retail Brands
* **Period** :\
  Daily from 2020 to present\
  Monthly from 2018 to present

<a href="https://www.wiseapp.co.kr/wiseretail/ranking/retail-brand" class="button primary">Go to WISERETAIL</a>

If you have any inquiries, please contact us via Support > [Contact](http://wiseapp.iptime.org:185/contact).\
Thank you.\
\
WISEAPP/RETAIL<br>


---

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