How to Apply Validation on Backend Customer Custom Field in Magento 2

Hello, Magento Buddies!!

With back end validation, you have the final say when it comes to whether something should be executed or not. The input of custom customer attributes must also be validated in order to avoid inaccurate data. Learn How to Apply Validation on Backend Customer Custom Field in Magento 2.

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Complete Tutorial at: https://magecomp.com/blog/apply-validation-on-backend-customer-custom-field-magento-2/