> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://help.stock-sync.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).

# How to append new metafield without overwriting them ?

In the update feed, you can **append new metafields that accept single-line text from a predefined list of values**. This option allows you to append new values from the feed to existing values in the store.

To learn more about metafields, [click here](https://help.stock-sync.com/en/article/custom-data-metafield-ptbnev/?bust=1753948813122).

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