
We’re excited to introduce the next segment in our Q&A series, Ask the Expert! Ask the Expert features a series of conversations with product experts where we dive into the areas you care most about like identity resolution, targeting, attribution, and more. Our next segment features a conversation about sell-side targeting.
Mike Chowla, SVP of Product at OpenX joins us to chat with Experian’s SVP of Sales & Partnerships, Chris Feo. OpenX is the world’s leading sell-side platform for audience, data, and identity targeting. In their conversation, Mike and Chris review:
- The shift to targeting on the sell-side
- How first- and third-party data are being used on the sell-side
- How OpenX is thinking about alternative IDs

What is sell-side targeting?
Sell-side targeting optimizes the way buyers and supply-side platforms (SSPs) work together. This approach moves the responsibility of inventory and audience targeting from the demand-side platform (DSP) into the SSP, providing advertisers with increased reach and better performance.
With sell-side targeting, locating your target audience becomes easier as you have a more direct connection with publishers. This increases your ability to scale against a target audience. Specifically, the SSP directly matches the buyer’s audience or data segment to the publisher inventory and audience and automatically sends the impression to the buyer’s DSP of choice via a deal ID, providing advertisers with improved reach and performance metrics as well as control over their inventory. With more direct access, your budget can likely go further, and you can decrease your effective cost per mille (eCPM) and get more working media.
“Supply-side targeting is the next phase of how supply path optimization (SPO) and buyers will need to work more closely with SSPs.” – Mike Chowla, SVP, Product, OpenX
Buying on the sell-side vs. open exchange
When buying on the open exchange, you have access to a vast number of impressions. With sell-side targeting, you can apply your campaign targeting directly on the supply-side and activate those impressions through a deal ID. Sell-side targeting works across various formats including web display, mobile, in-app, and connected TV (CTV) for a seamless advertising experience.
OpenX offers the unique capability to match users using their device graph within their SSP. This means you can target users from traditional data sources such as cookies or mobile ad IDs (MAIDs) and reach them in CTV or app environments. This gives you even more reach and precision in your advertising efforts.
The role of first- and third-party data on the sell-side
Buyers are showing a keen interest in bringing their own first-party data into the process of sell-side targeting. Meanwhile, certain agencies have been actively involved in working with identity and data. OpenX is currently collaborating with several agency ID solutions such as Choreograph, Merkel, and Horizon.
Buyers are also purchasing third-party data and data segments from various providers through OpenX’s platform for sell-side targeting purposes. By utilizing this data on the supply side, buyers are able to increase the match rate against their first- and third-party data segments in all environments. This ultimately maximizes scale against these audiences and drives a more efficient CPM due to eliminating waste.
Measurement and attribution on the sell-side
In the current state of SSP advertising, there is more of an emphasis on targeting capabilities than measurement and attribution. That said, SSPs can provide granular log level reports that can be utilized for multi-touch attribution (MTA) or mixed media models (MMM). These granular insights not only inform measurement and attribution models, but they also provide valuable optimization insights such as clearing price.
Additionally, advertisers have all of the same reporting options that they’re used to getting through their DSP because their buys are activated via deal ID in the DSP of their choice.
What to consider when transitioning to sell-side targeting
There are two primary items you should consider when transitioning to sell-side targeting:
- Supply
- Reach
Reach
Collaborating with partners who have the right capabilities can greatly improve reach and audience extension across different devices. For instance, if you bring your first-party audience or a third-party audience and are identifying that consumer via a cookie or MAID, being able to extend that targeting segment to other devices and platforms can be highly beneficial.
Supply
It’s crucial to collaborate with partners who have the right access to supply and direct connections with publishers. While targeting is essential, it’s equally important to have high-quality supply to drive performance.
Reaching consumers in a cookieless future
Whether you’re targeting on the demand or sell-side, it always starts with the consumer and who you’re trying to reach.
Significant changes in the consumer privacy landscape are impacting advertisers’ ability to access various signals emitted by consumers through their devices and browsers. Recent developments from Apple and Google have further amplified this situation.
Alternative IDs as a solution to signal loss
In response, we’re seeing the emergence of alternative IDs like UID2, Ramp ID, and ID5. OpenX supports these types of IDs and considers them crucial for audience buying in a privacy-centric cookie-less future.
We are still in the early stages of this evolution. While some of the IDs have good coverage, cookies will continue to be the primary targeting method as long as they remain available.
Nevertheless, we see alternative IDs as one of several solutions that will become increasingly important as third-party cookies disappear. Contextual buying will also emerge, and a set of solutions will come together to enable advertisers to keep finding their audience in a cookie-less world.
Overcoming signal loss with identity resolution
Looking ahead, as we continue to lose signals due to the evolving consumer privacy landscape, we will witness two things:
- Continued fragmentation
- A wide variety of identifiers
Content will continue to be available on various devices. We’re currently experiencing the emergence of connected TV, but who knows what other devices will surface over the next five to ten years. As cookies disappear, which have been the primary identifier, and alternative IDs are introduced, the wide variety of identifiers will create further fragmentation. This highlights the need for identity in the future.
Identity resolution at Experian matches fragmented identifiers to a single profile to create a unified, cross-channel view of your consumers. Our identity resolution solutions can help future-proof your marketing strategies.
How Experian and OpenX work together
Experian is a key player in OpenX’s OpenAudience solution and helps to power many of their data segments as well as their identity graph. While OpenX collaborates with a variety of providers and operates a fully interoperable platform, Experian remains valuable to the core technology within OpenX’s SSP.
“Experian powers a lot of the data segments and identity graph that OpenX has in our OpenAudience capabilities as part of our SSP.” – Mike Chowla, SVP, Product, OpenX
Watch the full Q&A
Visit our Ask the Expert content hub to watch Mike and Chris’s full conversation on sell-side targeting. In the Q&A, Mike and Chris also share their thoughts on the impact artificial intelligence (AI) will have on the AdTech industry and their go-to sources for staying up to date on all things AdTech.
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About our experts

Mike Chowla, SVP, Product, OpenX
Mike Chowla is the SVP of Product at OpenX where he leads product development and innovation, from customer discovery and user research to the development, delivery, and support of a market-leading product suite. Chowla holds a BS in Engineering from the University of Southern California, and an MBA from The University of Pennsylvania.

Chris Feo, Chief Business Officer, Experian
As SVP of Sales & Partnerships, Chris has over a decade of experience across identity, data, and programmatic. Chris joined Experian during the Tapad acquisition in November 2020. He joined Tapad with less than 10 employees and has been part of the executive team through both the Telenor and Experian acquisitions. He’s an active advisor, board member, and investor within the AdTech ecosystem. Outside of work, he’s a die-hard golfer, frequent traveler, and husband to his wife, two dogs, and two goats!
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Retail media networks (RMNs) rank among the fastest-growing media channels. According to eMarketer, retail media spend is forecasted to account for more than a fifth of overall digital spending in 2025, and retail media spend will grow by 21.8%. For RMNs, the path to realizing this opportunity is marked by navigating through a series of critical stages, each with its own set of challenges and solutions. Retail media strategies Simply put, RMNs need to know who their customers are, where they are, and how to reach them to succeed. But we know nothing is that simple. This blog post reviews the three pivotal stages of RMN success, offering a roadmap for networks aiming to optimize their operations and claim their share of the rapidly growing category. Stage 1: Develop a data foundation In a world where traditional tracking methods are fading, first-party data has become essential for targeted advertising. Retailers have a wealth of this valuable data due to their direct consumer relationships. The initial step in establishing an RMN is to organize and utilize this data effectively. Steps to develop a data foundation: Organize data: Bring together fragmented shopper data, loyalty program information, and other customer data into a unified location. Clean and deduplicate this data to create consistent customer profiles. Enhance profiles: Gain insights into your customers and your brand’s customers so you can learn who your best, lapsed, and non-customers are. Append additional attributes to your shopper data, including media consumption habits, lifestyle preferences, demographic information, and more. Use identity graphs: Identity providers, like Experian, enable you to learn about the anonymous – and known – visitors on your platform and organize disparate customer data points into households. This will allow RMNs to connect addressable identifiers to the household, making it easier to reach customers across channels. Create audience segments: With a solid data foundation, RMNs can build audience segments beyond basic shopper data. These segments will make your data more attractive and actionable for media buyers. For example, consider a retailer that knows its shoppers are primarily young professionals, but a CPG brand wants to target not only these shoppers but also young professionals who are parents. By partnering with an identity solution provider like Experian, the retailer can append additional data to identify and target the young parents within their existing customer base, enabling the CPG brand to reach both audience segments effectively. “Retail media networks thrive on clean, accurate, and actionable data. Simply put, it's crucial to know who your customers are, when they're most engaged, and where to reach them to drive effective marketing strategies and maximize ROI.”anne passon, sr. director, sales, retail Stage 2: Become a publisher for optimal retail media growth The next step for RMNs is to transition from building a data foundation to helping marketers reach their target audience, essentially becoming a publisher. This involves two main processes: organizing advertising inventory and connecting it to demand. Steps to become a publisher: Audit and organize inventory: Conduct a thorough review of all existing ad spaces, including websites, apps, and in-store placements. Identify gaps and consider creating new advertising opportunities, such as website and app features, interactive digital experiences, or expanded in-store touchpoints. Connect inventory to demand: Integrate the organized inventory with platforms, allowing advertisers to access it easily. This often involves using supply-side platforms (SSPs) and demand-side platforms (DSPs). Continuing with our example, the CPG brand can work with its DSP or SSP partners and easily access your ad inventory, and effectively target the young professional and young parent audience segments. Stage 3: Scale inventory for retail media growth As RMNs progress to the final stage of their success journey, they may face the challenge of limited inventory within their owned and operated (O&O) channels. To meet marketers' expansive reach requirements and to continue to drive growth and profitability for their organizations, RMNs must expand their inventory beyond O&O. Steps to scale inventory: Utilize data collaboration tools: Clean rooms allow secure merging and enrichment of data from various sources, creating richer audience profiles while maintaining privacy. Resolve identity and enhance addressability: Identity graphs help resolve known customer identifiers (e.g. emails) into addressable IDs (e.g. mobile IDs and connected TV IDs), which can be used to reach customers across all the platforms they consume media. Expand audience reach: Onboarders, like Experian, help extend data and audiences to programmatic destinations beyond a retailer's O&O inventory. By mapping audiences to digital identifiers maintained by identity partners, RMNs can significantly widen their reach, meeting advertisers' needs for engaging with broader and more diverse audience segments. The CPG brand can now reach young professionals and young parents on the retailer’s platform and in all the other places where they consume media, like watching their favorite shows on connected TV (CTV) or browsing the web on their phones. 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For our CPG brand, these measurement reports ensure that they can track the performance of their campaigns from the initial exposure on a CTV to the final purchase made on a mobile device, providing comprehensive insights and validation of their advertising strategy. The retailer can aggregate these studies and promote their network’s effectiveness to prospective advertisers. Accelerate retail media growth with strategic partnerships The journey through the stages of RMN success is riddled with deep technical challenges that are often beyond the institutional capabilities of non-media businesses. The intricacies of data management, audience insights, identity resolution, precise cross-device targeting, and measurement require specialized expertise and technologies that may not be readily available in-house. RMNs stand to benefit from forging strategic partnerships with companies that possess not only the necessary technological tools but also a profound understanding of the media landscape. The steps outlined here will accelerate your growth and ensure you capitalize on the opportunity in front of you. Connect with a member of our team to learn how we can support your journey toward RMN success. Contact us to enhance your retail media strategies Latest posts

Get ready for Cannes Lions 2024—the advertising industry is buzzing with excitement. This year's event promises to be a center of innovation, ideas, and networking. Here are five themes we expect will take center stage in conversations and how Experian can help marketers be prepared for what’s ahead. Cookie deprecation and signal loss At Cannes Lions 2024, the theme of transitioning to a cookieless advertising ecosystem is likely to dominate discussions. The saga of cookie deprecation continues to unfold, with Google recently pushing back the demise of third-party cookies once again. Experian remains fully committed to prioritizing continued testing of different industry solutions, including the Google Privacy Sandbox, to help customers prepare for a future without cookies. We've identified six viable alternatives to third-party cookies, how these alternatives fall short, and how Experian can help you navigate these alternatives. With Experian, the loss of cookies does not equate to a loss of coverage. With our strong roots in offline data and significant investments in our Graph, Experian ensures uninterrupted and effective marketing with robust signal coverage, with or without cookies. Based on early tests, we expect our Graph to maintain 97% of its household coverage. Read how MiQ, a leader in the cookieless era, strengthened its Identity Spine with the integration of Experian’s cross-device Graph here. Commerce The theme of commerce is poised to be a central topic of discussion at Cannes Lions 2024, reflecting the emergence and growth of retail media networks (RMNs). Evolving customer expectations are a key driver, with consumers demanding seamless and personalized experiences across all touchpoints of their shopping journey. The importance of bridging physical and digital experiences to create a cohesive customer journey will undoubtedly feature prominently in discussions at Cannes. Experian's Consumer Sync offerings facilitate seamless integration between online and in-person interactions, fostering a cohesive approach to engaging audiences across various platforms while measuring campaign effectiveness. As we heard at Shoptalk 2024, the evolution of retail media is propelling us into a new era of advertising and first-party data monetization. The integration of e-commerce with advertising presents an exciting opportunity for brands to drive direct sales through ads displayed within retail platforms, blurring the lines between marketing and commerce. Our Consumer View solutions provide access to over 5,000 demographic and behavioral data points, enriching your customer profiles for deeper insights. By combining first-party data with Experian's industry-leading data sets, you can create bespoke audience segments that drive increased return on investment (ROI), going beyond conventional category-based targeting strategies. Looking ahead, the future outlook for RMNs remains promising, with anticipated growth and expansion as brands increasingly recognize the value of reaching consumers precisely at the point of purchase. Connected TV At Cannes Lions 2024, we anticipate discussions to focus on how connected TV (CTV) can continue to live up to its promise. CTV is the most rapidly expanding advertising channel in the U.S and 95% of advertisers plan to increase their share of spend on programmatic CTV in 2024, according to The Trade Desk's latest CTV report. The growing adoption of CTV among viewers, driven by factors like quality content, reduced ad interruptions, and cost-saving alternatives to traditional cable, signals a shift in consumer behavior that marketers cannot afford to overlook. Experian supports the growth of advertising interest in CTV through our signal-agnostic Graph that connects CTV IDs, universal IDs like Unified I.D. 2.0 (UID2), IPs, and mobile ad IDs (MAIDs) for effective activation. Our digital identity resolution with Activity Feed provides insights into CTV viewership behavior, linking CTV exposure to e-commerce conversions. CTV also enables greater collaboration, and we've recently announced new partnerships with CTV industry leaders Microsoft, Samsung, Attain, Sonobi, and EDO. Consumer privacy Consumers are increasingly aware of privacy concerns surrounding their data and numerous laws are going into effect across the U.S. at the state level. Most recently, there has been momentum on a federal data privacy law. We expect consumer privacy to be a significant topic of discussion at Cannes Lions 2024, reflecting the growing importance of ethical data practices in advertising. In a recent Q&A with Datavant, Jeremy Meade, VP of Marketing Data & Product Operations at Experian, highlights the importance of balancing data privacy and utility, focusing on "data for good" practices while using de-identification techniques to support research without compromising consumer privacy. Our Geo-Indexed audiences are an example of how Experian can help you reach your audience while balancing data privacy and accuracy. Our Geo-Indexed audiences combine location data with audience insights to deliver targeted marketing solutions. These audiences are created without the use of sensitive personal information, so you can confidently reach your target audience without sacrificing data privacy. With deep roots in data protection and security, you can confidently partner with Experian as we proactively stay ahead of regulations and strictly follow all consumer privacy laws. Campaigns and competition The theme of campaigns and competition is poised to be an important discussion point, driven by the convergence of major global events like the U.S. presidential election and this summer’s games—both occurring once every four years. These landmark occasions present opportunities for marketers to craft targeted campaigns that resonate with specific audience segments. As we approach the 2024 election season, the advertising landscape is primed for growth, with political ad spending projected to exceed $10 billion. Effective audience targeting during this crucial period can sway voters, shape public opinion, and influence election outcomes. Experian's 240+ politically relevant syndicated audiences, including our 10 political personas, enable a nuanced understanding of voter viewpoints and empower tailored engagement strategies to connect more effectively with constituents. At the same time, this summer’s games in Paris offer a unique opportunity for sports marketing. With one billion viewers expected to tune in, the global spectacle presents a platform to engage with passionate sports audiences worldwide. Using Experian's syndicated audiences, marketers can precisely target sporting goods shoppers, avid fans, athletes, and spectators alike. The combination of these major events emphasizes the need for careful planning and data-driven strategies and marketers should take advantage of the excitement surrounding both events. Follow us on LinkedIn or sign up for our email newsletter for more informative content on the latest industry insights and data-driven marketing. Contact us Latest posts

With the back-to-school season approaching, marketers are preparing to engage both eager students and parents. Our Q&A video with Experian experts shares our predictions and tips for the 2024 back-to-school season so you can craft effective back-to-school marketing campaigns. From early campaign launches to the rise of online shopping and budget-conscious consumer behaviors, let’s explore what lies ahead and how brands and agencies can prepare. What separates Experian's syndicated audiences Experian’s 2,400+ syndicated audiences are available directly on over 30 leading television, social, programmatic advertising platforms, and directly within Audigent for activation within private marketplaces (PMPs). Reach consumers based on who they are, where they live, and their household makeup. Experian ranked #1 in accuracy by Truthset for key demographic attributes such as Presence of Children. Access to unique audiences through Experian’s Partner Audiences available on Experian’s data marketplace, within Audigent for activation in PMPs and directly on platforms like DirectTV, Dish, Magnite, OpenAP, and The Trade Desk. Watch the highlights from our video below. Three trends for the 2024 back-to-school marketing season Campaigns will start earlier We expect back-to-school marketing efforts to kick off earlier than usual. Brands will launch campaigns with special promotions to secure mind and market share ahead of competitors. Additionally, the traditional back-to-school season is extending, urging marketers to prolong their campaigns to capture the attention of consumers who are taking more time to make purchasing decisions. Online shopping will continue to rise The surge in online shopping during the pandemic has become a lasting trend – and is especially appreciated by busy parents seeking convenience. Brands should focus on enhancing online and mobile shopping experiences, including options for in-store pickup and delivery. Marketers should prioritize their online presence and optimize e-commerce platforms, including experimenting with shoppable ads on connected TV (CTV), to meet the needs of families shopping for back-to-school supplies. Budget consciousness is top of mind With inflation on the rise and tighter budgets at home, households are becoming more selective in their back-to-school spending. Marketers should align their efforts with value-driven products and prioritize advertising that resonates with these financial priorities. Strategies for brands and agencies Next, let's explore strategies brands and agencies can use to prepare for the upcoming back-to-school season. Brands First, we'll highlight three recommended strategies for brands. Maintain an evergreen presence Launch your back-to-school campaigns early and maintain a steady presence throughout the season. Experian's TrueTouchTM audience insights can guide your channel selection for maximum impact, helping you decide on key channels such as email, digital video, or specific social media platforms. Build loyalty programs that deepen customer relationships Use your customer data to create loyalty programs that foster stronger connections with your audience. By using insights from Experian, you can gain a holistic understanding of customer profiles and identify potential back-to-school prospects within your existing customer base. On average, Experian has 250 behavioral and demographic marketing attributes per individual, which means we can decorate households and people with marketing data to get a full customer profile and fill in any gaps you have on your audience. Prioritize value and convenience Offer flexible shopping options like in-store, online, and buy online, pick up in-store (BOPIS) to cater to busy families. Partner with services like Shipt or Instacart to streamline shopping experiences. Agencies Now, we'll share two ways agencies can effectively prepare for the back-to-school season. Engage early and extend your campaigns Initiate conversations with brands earlier to ensure timely planning and execution. Extend campaign durations to capture late-decision makers. Adapt your channel strategies Shift focus to digital channels like CTV and social media, aligning with evolving consumer habits and preferences. Experian works with major platforms, marketers, and agencies, which means we have existing partnerships across the ecosystem for you to connect with and bring your consumer data to life to meet your needs. Watch the full Q&A The 2024 back-to-school season promises new challenges and opportunities for marketers. By starting campaigns earlier, optimizing online experiences, and aligning with budget-conscious consumers, brands and agencies can position themselves for success. Watch our full Q&A video where our experts cover: Tactics we predict marketers will employ to navigate signal loss Which channels will be the most successful Recommended audiences for targeting And more! Watch now Need a custom audience? Reach out to our audience team and we can help you build and activate an Experian audience on the platform of your choice. Additionally, work with Experian’s network of data providers to build audiences and send to an Audigent PMP for activation. Contact us Latest posts