Magento 2 Checkout post code (zip code) is not a required filed

Question

I want to make the postcode filed a required filed in the checkout process. I am sure that by default, this IS required but for some reason, it isn't in my store.

I know there is entry in vendor/magento/module-checkout/view/frontend/layout/checkout_index_index.xml that makes the filed required:

<item name="postcode" xsi:type="array">
     <!-- post-code field has custom UI component -->
     <item name="component" xsi:type="string">Magento_Ui/js/form/element/post-code</item>
     <item name="validation" xsi:type="array">
     <item name="required-entry" xsi:type="string">true</item></item>
</item>

But I can't see my theme overwriting this file anywhere but just to be sure I added the original file from vendor to my theme folder. Still no luck.

How else would I debug this issue?

Running on:

• Magento 2.1.8
• Custom theme "Venustheme/cricket"
• Nginx

Answer 1

I found my problem...

Magento 2 has a built in feature that allows the user to specify countries for optional post code.

In that feature, you can remove validation for selected countries.

Settings can be found in: Admin Panel > Stores > Settings > Configuration > General > General > Country options > Zip/Postal Code is Optional for

You have to un-tick the "Use system value" and un-select the countries that you want the post code to be validated for.

I should have properly looked through configurations rather than jumping straight to the code... I hope someone will find this useful.

Answer 2

<item name="required-entry" xsi:type="string">true</item>

Should be a boolean instead:

<item name="required-entry" xsi:type="boolean">true</item>

Flush cache and retry?