I am having a requirement of filling the fields using a third party API with a request parameter so when a user fills the "id" the name and address should be populated on the based on ID.
You can create a service using Form Data model and call it from the form on value commit of ID field. The service response should be used to set the form fields.
You can create a service using Form Data model and call it from the form on value commit of ID field. The service response should be used to set the form fields.