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I want to verify if the zip code entered by the customer matches correctly with the region.

For example:

zip code:10001

Region: New york

If the customer enters the wrong zip code for the region, it throws an error "your zipcode and region need to match"

I think I need to use the USPS API.

I created an account in USPS API.

How to implement this functionality in the checkout page and my account save address page.

I followed this below link. But It doesn't work for me.

https://www.w3solver.com/magento-2-address-verification-using-usps-api-on-checkout/

Any help, experience and knowledge sharing would be appreciated

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  • This is module is not good for your requirement
    – Amit Bera
    Commented Jul 25, 2019 at 18:52

1 Answer 1

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You have put the postcode/Region checking at

\Magento\Quote\Model\ShippingMethodManagement::estimateByExtendedAddress \Magento\Quote\Model\ShippingMethodManagement::estimateByAddressId

because of these functions, the shipping methods are rendered at the checkout page.

Note that, Magento 2 does not save the Shipping address till database 's quote until select the Shipping method .

So, the above two methods is best way to checking ZipCode/region at checkout.

3
  • It is working fine. Commented Jul 29, 2019 at 11:54
  • How to show pop error message and stop to redirect to checkout page from cart page Commented Jul 29, 2019 at 11:55
  • If you want to show this message at pop then you have work more and logic will different from current.
    – Amit Bera
    Commented Jul 29, 2019 at 11:58

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