> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://help.peak-pim.com/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# 🏷️ Adding and editing product metafields

Metafields let you add extra custom details to a Shopify product, such as material, care instructions or a size guide.

# Before you start

The metafield definition must already exist in `Settings > Metafields`.

👉 [Creating a metafield definition](https://help.peak-pim.com/en/article/creating-a-metafield-definition-4h0n6u/)

# Filling in metafield values

### 1. Open the product in Peak PIM

### 2. Find the metafields section on the product page

### 3. Enter or update the values

### 4. Publish

Publish the product to send those values to Shopify.