Products and variants
Product exports include columns for product and variant metafields. Use a Product Update CSV to change those values in bulk. A value in a metafield column replaces that value, while an omitted or blank cell leaves it unchanged. Enter __CLEAR__ when you want to remove the value in that field.
For URL list metafields, separate ordinary links with semicolons. If a link itself contains a semicolon, enter the whole list as a JSON array in the cell, for example ["https://example.com/guide;edition=2","https://example.com/care"]. Exports use this format when needed to preserve the original links. Your spreadsheet app handles the surrounding CSV quotes when saving the file.
Other supported resources
For collections, categories, pages, blog content, vendors, brands, and store metafields, open Settings > Metafield Values and edit values on each resource.
Remove values and definitions
Clearing a value removes it from that resource only. Deleting a product, customer, order, or other resource also removes the metafield values that belong to it.
A definition cannot be deleted while values still use it. Export a backup if needed, clear its values, and then delete the definition.
When an app is removed
Definitions and values owned by a removed app are kept for 48 hours. Reinstalling the app during that recovery period keeps the data; after the period ends, the app's custom data is removed.