Below is a chronological list of changes to our API. Breaking changes will be marked with a red banner.
2026-07-08: Renaming and Relabeling of CPA data in Report endpoints
This change effects the return of existing endpoints
The Reporter endpoints (v1/clients/{client_slug}/reports} when type=”compute_grouped_channel_summaries" previously had downloads with ROI and mROI in the key, even when the model was a CPA model based off conversions. CPA and mCPA numbers were listed under column headers indicating ROI/mROI. These key-names and header rows have been updated to more accurately reflect the data returned when the underlying model is conversion-based. These changes are retroactive and will be visible in all reports regardless of when they were ran.
When type=”compute_spend_summary” the API previously returned columns indicating ROIs for CPA based models by showing total conversions / total spend. The computation and labels have been updated to use CPA labels and show the computation total spend / total conversions. These changes not retroactive and will only apply to reports run after 2026-07-08.