{"product_id":"po-validator","title":"PO Validator B2B","description":"B2B merchants must attach a Purchase Order number to every order, but Shopify provides no native way to enforce this. Buyers skip the PO field or enter invalid data, causing fulfillment delays and ERP mismatches. PO Validator solves this with server-side validation via Shopify Functions. Buyers cannot complete checkout without a valid PO number. Configure rules: required field, min\/max length, mandatory prefix, regex patterns, allowed characters, and multilingual error messages.","brand":"byKlemm","offers":[{"title":"rating","offer_id":53387522867513,"sku":null,"price":4445530.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0717\/0831\/1865\/files\/CNurvOqG7ZQDEAE.png?v=1781016924","url":"https:\/\/pickyourapp.com\/de\/products\/po-validator","provider":"PickYourApp","version":"1.0","type":"link"}