You can manually attach macros to the tracking links you create with your attribution provider so cost data is appended on top of every ad click. However, relying solely on tracking links leads to discrepancies with your network (on average 30%) and ad spend will likely differ from the actual invoices you receive, making reconciliations and retroactive data updates impossible. This method has more serious limitations: lack of support for CPM & CPA campaigns, not all sources support these macros, and it won’t work for any non-mobile marketing channel.