Accurate delivery addresses are critical for successful order fulfillment. Even small omissions—such as a missing street number—can lead to failed deliveries, increased carrier fees, delayed shipments, and frustrated customers. To address this common issue, Missing Street Number Validation ensures that customers provide complete address details before completing checkout.
Why Missing Street Numbers Matter
Shipping carriers require a full street address to accurately route and deliver packages. An address like “O’Connor Street” without a street number may be technically entered but is often undeliverable. These incomplete addresses can result in:
Failed or returned shipments
Manual address correction by support teams
Increased operational costs
Poor customer experience
By catching errors early—at checkout—businesses can significantly reduce these risks.
How Missing Street Number Validation Works
When enabled, the Missing Street Number rule automatically checks entered delivery addresses during checkout. If the system detects that a street number is missing, it immediately prompts the customer to correct the address before proceeding.

This validation leverages a global, industry-leading address database, working in collaboration with trusted shipping and logistics partners such as USPS, FedEx, DHL, and other carriers. The result is highly accurate, real-time address verification across regions.
Key Features
Universal Rule Execution
The rule applies automatically to all checkouts without requiring additional conditions, making it easy to deploy and manage.
Inline Error Messaging
Error messages can be displayed top of the Checkout page or directly below the address input field, clearly highlighting the issue at the exact point of entry. This minimizes confusion and speeds up correction.
Custom Error Messaging
Businesses can customize the message shown to customers—for example:
“Your address is missing street number.”
This ensures clarity while maintaining brand tone and voice.

Conclusion
Address validation is a small detail that makes a big difference. By enforcing Missing Street Number Validation at checkout, businesses can prevent costly shipping errors while delivering a smoother, more reliable customer experience. It’s a proactive step that protects both operational efficiency and customer satisfaction—before an order ever leaves the warehouse.
Should you have any further questions, please feel free to drop an email to support@valider.app
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