Conditional Checkout Phone Number Requirement for International Orders

86% Confidence Small Market Hard Difficulty $3k-10k MRR Updated Jul 3, 2026

The Opportunity

A Shopify app that lets merchants require a phone number only for checkout customers outside their home country. It would add conditional validation to checkout based on shipping/billing country, reducing friction for domestic buyers while meeting carrier or fulfillment requirements for international orders.

"Shopify’s native checkout settings can only require phone numbers for all customers, not just international shoppers."

Market Validation

1
Merchants Asking
90/100
Quality Score
1
Unique Merchants

Detailed Analysis

Proposed Solution

Provide a checkout customization app for Shopify Plus merchants that detects the customer’s country during checkout and conditionally enforces phone number entry only for non-domestic orders.

Target Audience

Shopify Plus merchants with international shipping, especially stores using checkout customization and needing phone numbers for delivery coordination.

Competitive Landscape

Checkout customization apps, checkout field validation apps, and Shopify Plus custom implementation services; direct out-of-the-box competitors are limited due to checkout.liquid restrictions.

Implementation Notes

Best suited for Shopify Plus stores with checkout.liquid access or extensibility support. The app would need country detection during checkout, conditional field validation, compatibility with Shopify checkout constraints, and careful handling of edge cases like PO boxes, local pickup, and accelerated checkouts. A fallback admin interface for rule configuration by country or region would improve usability.

Evidence from Merchants

Real quotes from Shopify community forums

"We need to apply that setting to only international customers."

Peter_Papadimit

"Is there an easy snippet of some kind we can throw in our checkout.liquid to achieve this?"

Peter_Papadimit

Key Pain Points

Need to customize checkout settings for international customers

medium

Mentioned by 1 merchants

Market Metrics

$29-49/mo
Suggested Pricing
~1.5k stores
Addressable Market
4-8 months
Dev Timeline
3-4 months
Time to Market

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