[Plugin: Contact-Form-7: 3rd-Party Integration] Anyone tried with SugarCRM or vTiger CRM?

I have not tried either, but you should be able to add multiple services attached to the same forms. If you need further customization of the request/response sent to a 3rd-party, you can either use the hooks my plugin provides, or you can actually hook straight into contact-form-7 itself using their hooks (like my plugin does).

I provided a very basic example of a mailchimp hook with the plugin files in the folder “3rd-party”. You can copy that and make changes, and use it similarly for either mailchimp or sugarcrm.

Please note that MailChimp employs a double-opt-in system, so the “success” clause only really indicates that they’ve sent you a confirmation email, not that you’re actually subscribed to MailChimp.