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Yes, you're right. Using a webhook is an excellent approach to implement custom logic for handling profile updates, including preventing email changes. Ory Kratos supports webhooks through its "Actions" feature, which allows you to trigger external logic during various flows, including the settings (profile update) flow. According to the [Ory documentation on webhooks](https://www.ory.sh/docs/guides/integrate-with-ory-cloud-through-webhooks), you can use webhooks to modify user data when certain events occur. This is perfect for your use case of disallowing email changes during the profile flow. To implement this using a webhook: 1. Configure a webhook action for the settings flow. As mentioned in the [Ory Kratos hooks documentation](https://www.ory.sh/docs/kratos/hooks/configure-hooks#available-actions), the

web_hook

action is the only action type available for the

after

settings flow. 2. In your webhook implementation, you can check if the email is being changed. If it is, you can either revert the change or return an error response. Here's a general outline of how you might set this up: 1. Configure the webhook in your Ory Kratos settings:

yaml selfservice:   flows:     settings:       after:         profile:           hooks:             - hook: web_hook               config:                 url: <https://your-webhook-url.com>                 method: POST

2. In your webhook implementation, you would receive the profile update data. You can compare the new email with the original email. If they're different, you can either revert the change or return an error. Remember, the exact implementation details will depend on your specific setup and requirements. You'll need to handle the webhook payload, process it, and respond appropriately. This approach gives you fine-grained control over the profile update process, allowing you to implement custom logic to prevent email changes while still allowing other profile updates to proceed.