post code

@mohdaljaraba Post code requirements change based on the country that is chosen.

This can be seen in the country list here:
https://github.com/woocommerce/woocommerce/blob/4.5.2/includes/class-wc-countries.php#L768

Some gateway and shipping extensions require this data, as well.

If this snippet is added to your functions.php file or through the Code Snippets plugin, it should do what you’re looking for:
https://gist.github.com/lukecav/ce689f978de321b49d68d9b7e472f8f1