How to configure different custom field visibility between signup and profile modals in Memberstack? Answered

• 

  Julian Galluzzo

  • September 14, 2023 07:34

  I think custom modals will have to be the solution on this one

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• 

  Duncan from Memberstack

  • September 14, 2023 07:35

  Yup, Julian is correct

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• 

  Sebastian Kacperski

  • July 08, 2025 13:13

  I’m using MS default sign up modal yet I would like to pass a value to a custom field “behind the scenes”. I don’t want to show that in the UI. This will be rather simple value “promo: yes”

  Is this possible in default modals?

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• 

  Chukwudi

  • July 08, 2025 13:14

  Hi Sebastian,
  I'm afraid it's not possible to do this directly in the default modal. However, a workaround would be to place the script below on the page users are redirected to after signing up — for example, the dashboard. This script will update the custom field if it's empty, once the user lands on that page:

  <script>
  document.addEventListener("DOMContentLoaded", async function() {
    window.$memberstackDom.getCurrentMember().then(async (member) => {
      if (member && (!member.customFields.promo || member.customFields.promo === "")) {
        try {
          await memberstack.updateMember({
            customFields: {
              "promo": "yes"
            }
          });
          console.log("Promo field updated successfully.");
        } catch (error) {
          console.error("Error updating member data:", error);
        }
      }
    });
  });
  </script>
  

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• 

  Sebastian Kacperski

  • July 08, 2025 13:15

  thanks Chukwudi

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