> ## 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).

# Why is my metafield greyed out and disabled?

![](https://storage.crisp.chat/users/helpdesk/website/-/b/2/1/9/b219050a5836c000/metafield-grey-out_1fi1zud.png)

**Do not support content types ending in "Reference"** (e.g., Collection Reference, Product Reference, Page Reference, File Reference, Variant Reference, Metaobject Reference).