Here is a list of how Facebook Measurement Partners can help:

Partner Lift: Facebook's Partner Lift integrations leverage best-in-class vendors to measure lift in sales using partner-based ROI measurement solutions.

MTA Partner Program: Facebook offers an MTA Partner Program that enables multi-touch attribution (MTA) partners to provide people-based MTA reporting across all publishers, including Facebook.

Marketing Mix Modeling (MMM) Partners: Enable partners to better measure and compare the effectiveness of advertisers' marketing channels in terms of contribution to sales, efficiency, and ROI.

Mobile Measurement Partners (MMPs): Work with one of our Mobile Measurement Partners to see aggregated reporting across multiple ad networks, powered by Facebook attribution data.