WooCommerce personalisation order data is not just something to capture at checkout. For an engraved tumbler, printed shirt or embroidered bag, it becomes the production instruction that tells a person what to make. If the handover is unclear, a perfectly good product page can still lead to wrong spellings, mismatched styles and time-consuming support conversations. The useful question is therefore not only whether customers can customise an item, but when a configuration becomes safe for a team to produce.