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I am using magento 2.1.7. I have added vat field to billing address form. I want to add custom field validation. i have added below code.

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Added below validation to phtml file

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But my custom validation not working. Magento required field validation is working fine. Can anyone help me.

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  • Hi @Prashant , didd you found the solution
    – Jaisa
    Jul 12, 2018 at 4:47
  • @sri as per given answer i have override rules js file. add your custom validation to override js file Jul 12, 2018 at 15:47

1 Answer 1

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Override rules.js using below code in my custom module

app/code/Test/Custom/view/frontend/requirejs-config.js

var config = {
    "map": {
        "*" : {
            'Magento_Ui/js/lib/validation/rules' : 'Test_Custom/js/validation/rules'
        }
    }
};

created js file at app/code/Test/Custom/view/frontend/web/js/validation/rules.js

Run php bin/magento setup:static-content:deploy command.

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  • great, it works! Haven't you found another way without override rules.js?
    – LucScu
    Aug 6, 2018 at 10:20
  • There is mixin concept but that is not working in my case. Please try with mixin Aug 7, 2018 at 6:25
  • yes, i could try to override rules.js, thx very much
    – LucScu
    Aug 7, 2018 at 16:51

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