We aggregate a large number of data sources and have developed a clear ecosystem that allows you to easily select, analyze and micro-target the voters you need to reach faster.
Research and analyze your district with L2 ConstituentMapping with hundreds of micro and macro viewpoints. Explore a district from 50,000 feet or 500. Get the lay of the land before communicating with your constituents.
Tap into more than 250 million national consumer records, built with our trusted partners. Our consumer data services include analytics, direct-to-consumer targeting, identity resolution, lead generation, list cleaning and location planning.
L2 and Ecanvasser have partnered to bring together the highest quality voter and consumer data with the most intuitive mobile canvassing platform available.
We’re excited to announce that L2 data sets are now available on Snowflake Data Marketplace. Snowflake customers will have access to L2 U.S. nationwide databases.
We’re thrilled to announce the newest addition to L2’s digital activation capabilities: an integration with Yahoo DSP that enables interoperability of L2 segments with Yahoo ConnectID. This means that advertisers can seamlessly push L2’s rich voter and consumer segments into Yahoo DSP for targeting, giving campaigns, advocacy teams, and marketers a streamlined, privacy-centric path from audience build to media delivery.
This integration furthers our mission: making trusted data activation as simple, fast, and accurate as possible.
If you’d like a walkthrough, demo, or test integration, just let L2 know at info@L2-data.com and we’d be happy to help you get set up.
Why Yahoo DSP?
Yahoo DSP (with its native support for conversion APIs, identity resolution, and cross-device reach) is a major player in programmatic advertising. It offers advertisers access to premium inventory, advanced targeting capabilities, and an ecosystem that emphasizes privacy and flexibility. Yahoo’s Conversion API (CAPI) allows server-to-server data transfer for measurement and activation, bypassing reliance on client-side cookies. (Yahoo Help Center)
By connecting L2’s data platform with Yahoo DSP, users can:
Activate voter and consumer audiences inside Yahoo campaigns with minimal friction
Leverage Yahoo’s attribution, optimization, and measurement tools natively
Maintain better control, transparency, and governance over data flows
How the Integration Works (Step-by-Step)
Here’s a typical workflow for using L2 DataMapping → Yahoo DSP:
Build your universe in L2 DataMapping Use our intuitive web interface to select targeting criteria: geography, demographics, voter history, modeled traits, consumer attributes, etc. Save your selection as a “universe.”
Transmit the universe to Yahoo DSP In the “Transmit” tab, choose Yahoo DSP as the destination partner. You’ll be prompted to enter your Yahoo Advertiser MDM ID. Optionally, you can save these for reuse.
Back-end match & onboarding Once submitted, L2 will hash and tokenize identifiers (emails, device IDs, phones, etc.) and forward them to Yahoo’s ingestion endpoints (Data X) under the proper schema.
Audience becomes available in Yahoo Within a short processing window (e.g. 1–2 business days, depending on volume and identity matching), your L2 audience will appear as a segment or rule within Yahoo DSP. From there, you can attach it to line items, set bidding strategies, or layer with other segments.
Run, measure, optimize Performance metrics from Yahoo feed into its dashboards or via API. You can monitor match rates, conversion, cost per action, and optimize accordingly.
Note: As with all integrations, match effectiveness depends on identifier availability and overlap between the source data (L2) and Yahoo’s user graph. It’s best practice to include multiple hashed identifiers (email, device ID, etc.) to maximize match rate.
Why This Matters for L2 User
Fewer manual steps, more automation Rather than exporting segments, transforming them, and manually uploading into Yahoo, you now have a one-click path from L2 to media delivery.
Reduced error and leakage Automated data pipelines reduce formatting errors, latency, and mismatches that can occur with manual workflows.
Better control and visibility You can see exactly how much of your L2 universe is matched in Yahoo, giving clearer attribution insight and accountability.
Expands activation options This gives advertisers more flexibility — not every campaign wants to run on Meta, Google, or other DSPs. Yahoo now becomes a first-class channel for campaigns built with L2.
What’s Next / Coming Soon
While the core integration (audience push + match) is functional, we’re already working on enhancements:
Real-time or streaming sync So audiences can update dynamically (e.g. as new voter registrations come in) rather than only batch updates.
Conversion modeling support For campaigns with sparse conversion data, we’ll assist in modeling lift and attribution within Yahoo.
Advanced composite audiences Support for richer, weighted combinations of L2 traits, segments, and Yahoo’s internal predictors.
Match rate diagnostics and feedback loop A UI dashboard in L2 where you can view match breakdowns, dropped records, and quality diagnostics for Yahoo ingestion.
Summary
The L2 → Yahoo DSP integration empowers political, advocacy, and commercial marketers to bring L2’s high-quality voter and consumer audiences into Yahoo’s programmatic ecosystem with ease and rigor. It reduces friction, improves accountability, and opens up new activation routes for campaigns that prefer or require diversification across DSPs.
Like all our digital integrations (e.g. Trade Desk, IQM, StackAdapt) (L2 Data), this is part of L2’s broader strategy to meet you where your media runs — letting you build data first, then deliver where it matters.
If you’d like a walkthrough, demo, or test integration, just let L2 know at info@L2-data.com and we’d be happy to help you get set up.
