> For the complete documentation index, see [llms.txt](https://docs.adlibertas.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.adlibertas.com/the-platform/consolidated-revenue-reporting/consolidated-reporting-vs.-consolidated-inventory-reporting.md).

# Consolidated Reporting vs. Consolidated Inventory Reporting

Generally, mediators return two types of reports, waterfall reports, combined into the **Consolidated Reporting Table** and Inventory Reports known to us as **Consolidated Inventory Reporting.**

What's the difference?

* **Consolidated Reporting** shows demand source and placement information, but does not merge with ad requests.
* **Inventory Reporting** shows ad requests, which don't merge 1:1 with ad networks or placement information.

### **Why are there two types of reports?**

Simply put, it’s not possible to tie a single ad request to multiple ad delivery attempts through a waterfall. 

Think of it this way, a single ad request is sent to your mediator, it travels through 6 ad units before being filled. Which line item owns that request? Is it correct to assign 0 to the other line items? What do you do in the case of a lost (unanswered) attempt?

### **How to use each report**

* Consolidated Reporting is most commonly used to determine network & placement performance. 
* Consolidated Inventory Reporting is good for monitoring overall fill rates-- it powers our App Performance Page -- and is uniquely useful for the metric of Revenue per Thousand Ad Requests (Rev per AdReq) which shows the revenue generated by total device impression requests and can often be a more useful metric than CPM to judge performance.

![](/files/T91eHIWBHFzxVNn8ZJJs)