In your Rockerbox attribution data, you may see a Tier 1 = Unmapped Events.
This is a default bucket for paid marketing events that do not match data from any spend reports.
Your Rockerbox team will investigate and resolve unmapped events above the 5% threshold.
Spend for that campaign or creative is not in Rockerbox
Verify Rockerbox ingested the most current spend reports.
If the platform is an API integration, verify your authentication and that the latest spend has been ingested.
If the platform is delivering spend via Batch spend, verify the latest reports have been delivered.
Unfilled macros in tracking parameters
Verify that all tracking is set up correctly and the macros in the impression pixel & URL parameters are filling as expected.