Verify Email Address Input On Real-time Marketing Form

*** NOTE: ALL INFORMATION IS ACCURATE AT DATE OF PUBLISHING ***

Often on web forms you will have the email address field, then another one to ask the submitter to confirm their email again. The two fields will be used to validate and make sure they are the same. I was asked if it could be done with a marketing form in D365 Marketing/Customer Insights and the answer is yes, with just a little bit of JavaScript! You will need to have an additional field to use to compare the two values then you are on your way. Let’s take a look to see how it can be achieved.

First, add the main email address field to your form. Most organisations use the emailaddress1 field but add what makes sense for your requirements. Make it required.

Then add in your second email address field that will be used for validation against the first one. In this case I am using emailaddress2 but you might want to add in a new field specifically for this purpose. Make this field required too.

Now we have our form looking pretty. We just need to edit the HTML to add in a script.

From the top right of the form, click on the HTML link.

Once in the HTML, find the end of the style section which ends with </style>. We are going to add in a script that is doing the following things. Rather than having to use an id to find the fields each time (which ends up being different for each form), we are going to get all of the fields and then look for the Email and Email 2 fields using the label of the field. Most people don’t rename these, but just in case, if you have renamed the actual fields, be sure to use the correct field name instead of Email and Email Address 2. We are then doing a check to say if email1 and email2 are not equal, prevent the form from being submitted and display a message to the person trying to submit the form, and place the warning message under the email2 field.

You should be able to just copy this script and add it in to your form!

  <script>
    document.addEventListener("d365mkt-formsubmit", function(event) {
    // Function to find input element based on label text
    function findInputByLabelText(labelText) {
      var labels = document.querySelectorAll('label[title="' + labelText + '"]');
      for (var i = 0; i < labels.length; i++) {
        var label = labels[i];
        var inputId = label.getAttribute("for");
        if (inputId) {
          var inputElement = document.getElementById(inputId);
          if (inputElement) {
            return inputElement;
          }
        }
      }
      return null;
    }

    // Find email input elements
    var email1InputElement = findInputByLabelText("Email");
    var email2InputElement = findInputByLabelText("Email Address 2");

    if (!email1InputElement || !email2InputElement) {
      // Inputs not found, handle the error
      console.error("Email input elements not found");
      return;
    }

    var email1 = email1InputElement.value.toLowerCase();
    var email2 = email2InputElement.value.toLowerCase();

    if (email1 !== email2) {
      event.preventDefault();
      console.log("Blocked mkt-formsubmit");

      // Display a warning message to the user
      var warningMessage = "Email addresses do not match! Please try again";
      var warningElement = document.createElement("p");
      warningElement.textContent = warningMessage;
      warningElement.style.color = "red";
      warningElement.style.fontStyle = "italic";

      // Insert the warning message after the parent of email2
      var email2Parent = email2InputElement.parentNode;
      email2Parent.appendChild(warningElement);

      return;
    }

    console.log("mkt-formsubmit" + JSON.stringify(event.detail.payload));
  });
  </script>

Now when we fill out the email address fields and they are different, the message displays and the form cannot be submitted. Excellent!

If you have previously added a script to check for generic domains added in your email field (gmail, yahoo, hotmail etc.) then you can use this combined script which will check both things for you!

<script>
    document.addEventListener("d365mkt-formsubmit", function(event) {
    // Function to find input element based on label text
    function findInputByLabelText(labelText) {
      var labels = document.querySelectorAll('label[title="' + labelText + '"]');
      for (var i = 0; i < labels.length; i++) {
        var label = labels[i];
        var inputId = label.getAttribute("for");
        if (inputId) {
          var inputElement = document.getElementById(inputId);
          if (inputElement) {
            return inputElement;
          }
        }
      }
      return null;
    }

    // Find email input elements
    var email1InputElement = findInputByLabelText("Email");
    var email2InputElement = findInputByLabelText("Email Address 2");

    if (!email1InputElement || !email2InputElement) {
      // Inputs not found, handle the error
      console.error("Email input elements not found");
      return;
    }

    var email1 = email1InputElement.value.toLowerCase();
    var email2 = email2InputElement.value.toLowerCase();

    // Check if email1 and email2 match
    if (email1 !== email2) {
      event.preventDefault();
      console.log("Blocked mkt-formsubmit (Emails do not match)");

      // Display a warning message to the user
      var warningMessage = "Email addresses do not match! Please try again";
      var warningElement = document.createElement("p");
      warningElement.textContent = warningMessage;
      warningElement.style.color = "red";
      warningElement.style.fontStyle = "italic";

      // Insert the warning message after the parent of email2
      var email2Parent = email2InputElement.parentNode;
      email2Parent.appendChild(warningElement);

      return;
    }

    // Check against blocked domains
    var blockedDomains = ["gmail", "yahoo", "google", "hotmail", "btinternet", "live.com", "outlook.com"];
    var isBlocked = blockedDomains.some(function(domain) {
      return email1.includes(domain);
    });

    if (isBlocked) {
      event.preventDefault();
      console.log("Blocked mkt-formsubmit (Blocked domain)");

      // Display a warning message to the user
      var warningMessage = "Please provide a valid business email address to submit the form.";
      var warningElement = document.createElement("p");
      warningElement.textContent = warningMessage;
      warningElement.style.color = "red";
      warningElement.style.fontStyle = "italic";

      email1InputElement.insertAdjacentElement("afterend", warningElement);

      return;
    }

    console.log("mkt-formsubmit" + JSON.stringify(event.detail.payload));
  });
  </script>

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