Plainwork Bulk Metafields

Bulk edit metafields on products and variants. Every edit starts as a preview showing the exact before and after value for each item, and nothing is written until you approve it. Any applied edit can be undone completely, including removing metafields that did not exist beforehand rather than leaving them empty. Adding to a list keeps the items already there instead of replacing them. If an existing value cannot be read safely, that item is skipped and reported rather than overwritten.