PO Validator B2B

by byKlemmCheckout - Other · #213 in category

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Tracking since Jul 30, 2026

Listing content

Currently live on the App Store

Name

PO Validator B2B

Subtitle

Enforce valid PO numbers at checkout. Built for B2B shops.

Introduction

Blocks checkout without a valid PO number. Prevent invalid B2B orders before they reach your team.

Details

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.