Each contact form instance rendered on the frontend has a status. The status must be one of the predefined statuses or a user-defined custom status that starts with the custom- prefix, and transitions from one to another according to user interaction.
While you can disable the functionality of the configuration validator, you may feel that disabling the entire functionality is overkill. Another technique that I am describing in this recipe allows you to apply more precise control over the configuration validator. You can disable only the error types you specify.
Contact Form 7 has an integration module with Brevo (formerly Sendinblue) that manages a contact database derived from contact form submissions. To add a contact data to the database, Contact Form 7 sends a request to the Brevo API. This recipe describes how you can customize the request parameters using the wpcf7_sendinblue_contact_parameters filter hook.
Contact Form 7 version 5.8 is now available. This major update includes several significant changes. Upgrading the plugin to 5.8 is recommended to all users.