When a visitor submits a third-party form, any field that isn't mapped in the router's Trigger is silently dropped – the Concierge log shows only the mapped fields. Admins have no way to see what data actually arrived in the payload, which makes "why isn't this field being captured?" the hardest class of ticket to debug. The only workaround is inspecting the page's HTML source to discover field names.

Concierge logs should show every field in the submission payload and label each one: mapped (to its Data Field) or Not mapped. Both the pre-submission and post-submission log views should be consistent.

Field mapping is behind the large majority of Concierge capture issues. Proactively showing the unmapped fields turns a support-ticket-and-guesswork investigation into self-serve diagnosis.