Ideally I’d like to setup a means of creating a new contact with an address and a phone number and potentially a note field as well. I’m really just looking at it as an alternative to paying for piesync or zapier as I only need it to work one way.
Xero has an API (accounting>contacts) that would allow a developer to create / update contacts. The webhook function in webflow (project settings) can be set to post form submission data to another URL where it is then acted on.
This would need to be some middleware endpoint application (that you built) that would receive the data posted from webflow, then use the Xero api to perform the appropriate action with the captured data.
Not worth the build time unless you had many new customers every day or it was a service. I don’t think there would be enough requests to justify the build.