I'm hoping I can be pointed in the right direction on this:

I have an Umbraco Form configured with a workflow to post to an external URL. I have set it up with the basic fields I want to collect and that all works fine.

For every form on the site, I want to collect a number of standard variables. I have javascript on the frontend to automatically hook into every form and add these hidden input variables. Because these fields are not configured in the Umbraco Form itself, they do not end up in the post data that's ultimately sent with the workflow.

Is there a way (perhaps through a custom workflow?) to ensure that these variables do end up in the final POST. I'm not concerned that they don't get stored in the form entry in Umbraco itself (that would be a bonus though), but mainly that they get posted to my external URL.

Thanks!

Alan