Executive Summary
John Lewis & Partners, one of the UK's leading high-end department store retailers, partnered with leading market research firms to conduct a comprehensive analysis of their mobile advertising campaigns during the 2022 holiday season. This study aimed to measure the effectiveness of mobile advertising in driving customer engagement, brand awareness, and ultimately, conversion rates across John Lewis's product categories.
The results revealed significant insights into consumer behavior patterns and demonstrated the substantial return on investment from strategically targeted mobile advertisements. Notably, campaigns featuring personalized product recommendations based on browsing history showed a 47% higher engagement rate compared to non-personalized content.
Background and Objectives
In an increasingly mobile-first shopping environment, John Lewis recognized the need to optimize their mobile advertising strategy to capture the growing segment of consumers who use smartphones for both research and purchasing. The primary objectives of this study were to:
- Evaluate the effectiveness of different mobile ad formats in driving consumer engagement
- Assess the impact of mobile advertising on brand perception and awareness
- Determine the correlation between mobile ad exposure and in-store and online purchases
- Identify the optimal timing and frequency of mobile advertisements to maximize conversion
- Analyze how personalization affects mobile advertising performance
Methodology
The study employed a mixed-methods approach combining quantitative analysis of campaign performance data with qualitative consumer research. The research included:
- Analysis of John Lewis's mobile advertising data from October 2022 through January 2023
- Survey of 2,500 UK consumers who had been exposed to John Lewis mobile advertisements
- Focus groups with 12 different consumer segments
- A/B testing of various ad formats, messaging, and personalization techniques
- Attribution modeling to track customer journeys from ad exposure to purchase
Key Findings
Mobile Advertising Effectiveness by Metrics
Increase in engagement with personalized content
Higher conversion rate for mobile ad recipients vs. control group
Return on every 1 invested in mobile advertising
Ad Format Performance
The study found significant differences in performance across various ad formats. Video advertisements demonstrated the highest engagement rates, with users watching an average of 87% of 15-second video ads. Instagram Stories and TikTok formats showed particular effectiveness for reaching younger demographics, while display ads on news sites resonated most strongly with readers aged 45+.
| Ad Format | Engagement Rate | Conversion Rate | Cost Per Acquisition |
|---|---|---|---|
| Video Ads | 8.7% | 3.4% | 12.40 |
| Carousel Ads | 6.2% | 2.8% | 15.70 |
| Display Ads | 3.9% | 1.9% | 8.90 |
| Instagram Stories | 11.3% | 4.2% | 16.20 |
Personalization Impact
Personalization emerged as a critical factor in mobile advertising effectiveness. Ads featuring products previously viewed by the user or recommendations based on their browsing history significantly outperformed generic advertisements. Specifically:
- Product retargeting ads showed a 37% higher click-through rate than generic category ads
- Abandoned cart emails following mobile browsing resulted in 28% recovery of lost sales
- Location-based offers drove 22% higher redemption rates among users who received them
Timing and Frequency Optimization
The timing of mobile advertisements proved crucial to their effectiveness. Analysis revealed three distinct optimal windows for reaching John Lewis's target audience:
- Morning commute (7:30-9:00 AM): Effective for impulse purchases and browsing
- Lunch break (12:30-1:30 PM): Highest conversion rate for completed purchases
- Evening relaxation (7:00-9:30 PM): Extended engagement time, ideal for research and consideration
Regarding frequency, the study found a sweet spot of 3-5 impressions per user per week. Exceeding this frequency led to diminishing returns and increased ad fatigue among the audience.
Attribution and Customer Journey Analysis
The multi-touch attribution model revealed that mobile advertising functions as part of a complex customer journey. While 18% of conversions occurred directly from mobile ad clicks, an additional 34% were influenced by mobile advertising without direct click-through. This "view-through" effect represents significant value that went previously unmeasured in traditional click-based attribution models.
Competitive Analysis
John Lewis's mobile advertising performance was benchmarked against key competitors including Marks & Spencer, Next, and Debenhams. John Lewis showed superior performance in brand recall metrics and luxury product category engagement, though lagged slightly in fashion category conversion rates compared to Next.
Detailed Analysis by Demographic Segment
Age Groups
Mobile advertising effectiveness varied significantly across age demographics:
- 18-24: Highest engagement with video-first formats, particularly on TikTok and Instagram. Strong response to influencer partnerships and limited-time offers.
- 25-34: Most responsive to personalized recommendations and shoppable ads. Highest average order value when converting from mobile ads.
- 35-44: Balanced response to both informational and promotional content. Strong correlation with household purchases and home goods categories.
- 45-54: Prefer detailed product information in ads. Higher conversion rate for considered purchases like furniture and electronics.
- 55+: Lower overall engagement but highest conversion rate when clicking. Strong preference for trust-based messaging and quality assurance in ad content.
Geographic Analysis
Mobile advertising performance also showed regional variations, with urban centers showing higher engagement rates but suburban areas demonstrating higher conversion values. Notably, customers in the Greater London area responded 31% more positively to ads featuring same-day delivery options, while consumers in Northern England showed stronger response to seasonal promotions.
Conclusion and Recommendations
The John Lewis Mobile Advertising Effectiveness Study demonstrates that strategically optimized mobile advertising delivers exceptional returns and significantly influences customer behavior. Based on these findings, we recommend:
- Significant investment in personalized product recommendation algorithms to increase the proportion of personalized advertising in campaigns
- Strategic scheduling of ad delivery to align with the three identified optimal time windows
- Expanded use of video and story-form content, particularly for fashion and home categories
- Implementation of enhanced attribution models that account for view-through conversions
- Regional customization of messaging and offers based on geographic performance data
Implementation Strategy
To implement these findings effectively, John Lewis should:
- Establish a cross-functional mobile advertising optimization team
- Develop a content calendar aligned with identified peak engagement times
- Invest in augmented reality features to enhance product visualization in mobile environments
- Create a loyalty integration program that rewards mobile engagement
- Build a competitive analysis dashboard for ongoing benchmarking
About John Lewis & Partners
John Lewis & Partners is a British department store retailer with 50 shops across the UK, as well as an extensive online and mobile presence. The company is renowned for its quality products and exceptional customer service, employing over 80,000 "Partners" who co-own the business. Known for its innovative marketing, particularly holiday campaign advertisements, John Lewis continues to pioneer digital retail experiences that blend the convenience of online shopping with the personalized service of their physical stores.
Contact
For queries regarding this study, please contact the John Lewis Marketing Insights team at insights@johnlewis.co.uk
