Conversion tracking for dealerships, from VDP lead to vehicle sold

A used car shopper compares the same truck across three listing sites before contacting anyone. Marketplace leads are created on the marketplace's domain and arrive in the CRM as ADF, carrying the marketplace as source and no click ID, even when the shopper first clicked your own Google ad. Chat, trade-in and credit tools on the VDP often run in vendor iframes, where the Google Ads tag either never fires or fires when the widget opens rather than when a lead is submitted. Facebook Marketplace messages never touch the website at all. The CRM merges the duplicates into one opportunity; each pixel still counts its own.

So the budget is set on leads while the money is made on funded deals. Bidding learns from widget opens and half-finished credit apps, often from shoppers your lenders will decline, and the listing sites' connection counts start to look like sales. On a buy-here-pay-here lot the deal that matters is the contract that keeps paying, which no ad platform ever sees. A ten-minute check: list last month's sold deals from the DMS, find each one's first lead in the CRM, and note the source and whether a click ID or the shopper's original phone number is stored. Put that list beside the conversions Google Ads reported for the same month.

Fixed looks like this: every sold deal carries its first source and contact details, Google Ads receives sold units back by click ID or hashed phone and email, a credit application counts once and only when complete, and no credit data ever reaches an ad platform. Financing ads on Meta run in the financial products and services special ad category, kept apart from inventory ads. The free thirty-minute audit traces last month's sold deals back to their first lead.