A reusable custom data type, referenced by metafields.
Metaobjects are Shopify's answer to reusable structured content. Define a metaobject type once (fields, validations, access) and reference instances of it from products, pages, sections or other metaobjects. Common uses: authors, testimonials, ingredients, size guides, care instructions, spec sheets. Storing this data in metaobjects instead of duplicating it in product descriptions means you edit it in one place and every reference updates.
