What is offline conversion tracking?
Offline conversion tracking is the measurement and reporting of results that do not occur directly online, but were initiated through your advertisements. Examples include a lead that later becomes a customer, a quote that is accepted, or a subscription that is taken out after contact with sales.
Normally, advertising platforms only see the first action, such as a form submission. Everything that happens after that, in your CRM or sales process, remains invisible. As a result, algorithms optimize based on volume, not real value.