I have a pre-sales question. My clients use the Newsletter plugin (free) on their main site, and now they want to add a subscriber if someone checks the checkbox on a contact form on a separate landing page. I also found ways to add Webhooks and add-ons for integrating with form plugins, but I couldn't find a info about if it is possible to send subscribers from e.g. Fluent Forms/Ninja Forms/etc. to a Newsletter instance on another site. Any help on this matter is much appreciated.
(Sorry for the formatting, it seems I am not allowed to add any line breaks ...)
just to be sure: you'd like to add a Fluent Form - Ninja form on another domain and send subscribers (those who click a checkbox) to the main domain, where Newsletter is running: is that right?
unfortunately that is not possible at the moment, unless you create your own api integration, but we normally can't give support on these matters, hope you understand. It is possible of course to use our own (html) forms on another website, since they're generated with all necessary data.