Every week, 4,000+ teams grow their revenue with our HubSpot case studies, automation blueprints, and proven sales workflows.

Case Study: Smarter Personalization With Einstein AI in Salesforce

%

increase in email open rates

%

lift in click-through performance

%

growth in email-driven sales

What you’ll learn

  • How Einstein Content Selection and Send Time Optimization can power true 1:1 personalization at scale
  • How to design adaptive email journeys that react to real-time behavior instead of static segments
  • How to use Einstein insights to continuously test, learn, and improve campaign performance

What you’ll need

  • Salesforce Marketing Cloud with Email Studio and Journey Builder
  • Einstein features enabled: Einstein Content Selection and Einstein Send Time Optimization (STO)
  • Clean, mapped customer data (behavioral, transactional, profile) flowing into Marketing Cloud and used in existing journeys

The Backstory

Before Einstein AI entered the picture, the organization had a reasonably mature email program inside Salesforce Marketing Cloud. Journeys were live, lifecycle campaigns were running, and automation had replaced most one-off blasts. From the outside, it looked like a success story: growing lists, consistent sends, and a platform that was tightly embedded in day-to-day marketing operations.

But when the team started looking deeper into performance trends, the plateau was obvious. Open rates had stopped improving. Click-throughs weren’t moving, even though the team kept increasing content volume and campaign variation. Emails were reaching inboxes, but they weren’t inspiring action. Engagement was slowly eroding, not in dramatic unsubscribes, but in quiet indifference.

The core issue: personalization was almost non-existent. Despite rich customer data-browsing behavior, purchase history, lifecycle stage-most emails were generic. Everyone received the same content, at the same cadence, at the same time. Segmentation rules were static and hard to maintain. Content choices were based on gut feel, not evidence. Leadership realized they couldn’t scale personalization manually. They needed a smarter system-one that could interpret behavior, decide what to send, and optimize when to send it, without adding manual workload. That became the brief for implementing Einstein AI.


Challenges Before Implementation

1. One-Size-Fits-All Email Strategy

Operationally, the email program treated the entire database as a single audience with minor segmentation tweaks. New customers, lapsed buyers, high-value segments, and first-time visitors often received nearly identical campaigns.

This showed up as gradually declining engagement. Customers who had once opened and clicked regularly became passive. Emails still landed in the inbox, but the content rarely reflected their current interests, lifecycle stage, or recent behavior. Over time, the inbox became “background noise” instead of a useful channel.

The cost to the business was subtle but compounding: fewer clicks into key journeys, slower movement from interest to purchase, and a missed opportunity to deepen relationships with high-value segments. The team was working hard, but the output didn’t feel relevant to the customer on the other side.


2. Static Segmentation and Manual Content Selection

Behind the scenes, segmentation logic was heavily manual. Marketers maintained complex lists, filters, and rules in spreadsheets or internal docs. Updating a segment often meant multiple people coordinating changes, testing filters, and hoping nothing broke in active journeys.

Content selection had a similar problem. Each send required hours of manual work: reviewing assets, guessing which images or offers might resonate, and building individual email variants. There was no systemized way to reuse what worked or quickly turn “winner” content into a default choice for particular audiences.

This manual model didn’t scale. As the database grew and campaigns multiplied, the team hit a ceiling. They couldn’t feasibly maintain more segments, more variants, and more tests without burning out. As a result, they defaulted back to a small number of “safe” templates and broad audiences-which further limited personalization and performance.


3. Data Model and Structural Misalignment

The organization had a lot of data-but it wasn’t structured in a way that Einstein could use effectively from day one. Behavioral events, purchase data, and profile attributes existed, but they weren’t consistently mapped into the fields and data extensions that powered segmentation and journeys.

Some key signals (e.g., last category browsed, most recent purchase, recency/frequency/value scores) were either missing, fragmented across multiple tables, or updated inconsistently. That meant Einstein models would have limited context to learn from, and any personalization logic would sit on shaky ground.

Practically, this created friction at every step. Marketers couldn’t reliably target “high-value but disengaging customers” or “recent browsers of a specific category.” Technical teams had to be pulled in repeatedly to patch data gaps. Without a clean, standardized data layer, intelligent personalization remained more of a concept than a daily reality.


4. Inconsistent Measurement and Optimization Loops

Reporting existed, but it wasn’t tightly connected to decision-making. Teams tracked open rates, click-through rates, and revenue, but there wasn’t a clear feedback loop that translated those insights into rapid changes in targeting, content, or timing.

A/B tests were run occasionally, but they were labor-intensive to set up and slow to interpret. Results stayed in slide decks more than they influenced live journeys. As campaigns increased in complexity, the lag between “learning something” and “changing something” widened.

This meant optimization was largely reactive. By the time the team adjusted a journey or template, customer behavior had already shifted. Without a dynamic, model-driven approach, performance improvements were incremental at best.


5. Timing Blind Spots and Missed Attention Windows

Every subscriber received emails at marketer-defined times: a standard send window based on internal preference or broad best practices. Actual customer behavior-when they typically opened, when they were most responsive, when their inbox was less crowded-was not part of the decision.

The result: even good emails often landed at the wrong moment. Messages arrived when people were busy, asleep, or flooded by competitor campaigns. There was no mechanism to adapt send times individually based on historical engagement patterns.

This timing mismatch didn’t just lower open rates; it weakened the perceived value of the program. When emails rarely show up at the right time, subscribers learn to ignore them altogether.


How We Implemented the Einstein-Powered Solution

1. Mapped the Complete Revenue and Engagement Lifecycle

We started by mapping the full lifecycle from first subscription through repeat purchase and long-term retention.

This included:

  • Identifying key stages (new subscriber, first-time buyer, repeat buyer, at-risk, lapsed)
  • Documenting the existing journeys and campaigns that touched each stage
  • Calling out where the current messaging was generic versus context-aware

Workshops with marketing, CRM, and analytics teams surfaced all the “unwritten logic”-who gets which email, when they get it, and why.

We translated that operational reality into a future-state model where Einstein would shape:

  • What content a subscriber sees (Einstein Content Selection)
  • When they receive it (Einstein Send Time Optimization)
  • How journeys react to behavior (opens, clicks, purchases, inactivity)

This blueprint became the reference for all downstream configuration.


2. Selected the Right Einstein Feature Set and Activation Strategy

Einstein itself is a menu of capabilities, so we deliberately chose where to start and how deep to go.

The team prioritized:

  • Einstein Content Selection to automatically pick the best content block per subscriber based on performance signals
  • Einstein Send Time Optimization (STO) to individualize send times at the subscriber level
  • Einstein Engagement and Conversion Insights to understand which combinations of content and timing drove results

We evaluated existing tools and manual processes that had been used to “fake” personalization (e.g., hand-built dynamic content, time-zone-based sends, manual “best time” guesses). These methods were either too brittle, too manual, or impossible to scale.

Einstein was selected not as another widget, but as the decision engine: it would sit underneath existing journeys and templates, augmenting them with data-driven decisions instead of replacing everything overnight.


3. Standardized and Rebuilt the Data Model for Einstein

Before turning Einstein loose, we reshaped the data layer to be model-ready:

  • Defined core profile attributes: lifecycle stage, preferred category, region, device preference, recency/frequency/value indicators
  • Consolidated behavioral events into a consistent schema (opens, clicks, purchases, browses) linked to subscriber keys
  • Mapped transactional data (orders, items, revenue) into data extensions that Einstein and journeys could both use

We removed redundant or conflicting fields, aligned naming and formats, and ensured that key events flowed into Marketing Cloud in a timely and consistent manner. Wherever possible, we created calculated attributes (e.g., “days since last purchase,” “most engaged category”) so Einstein didn’t have to infer everything from raw events.

This step is where most personalization projects fail. Here, it became a strength: the team gained a clean, documented data model that AI could learn from and marketers could actually understand.


4. Automated the End-to-End Personalized Workflow

With the data foundation in place, we re-designed journeys to be Einstein-driven rather than rule-driven:

  • Journey Entry:

    • Subscribers entered journeys based on clear events: new signup, category browse, cart activity, or post-purchase milestones.

  • Content Decisioning (Einstein Content Selection):

    • Instead of hard-coding which banner or offer to show, we defined a content catalog with metadata (category, objective, eligibility rules).
    • Einstein evaluated each subscriber at send time and selected the content block with the highest predicted engagement for that individual.

  • Send Time Optimization (STO):

    • For each email activity, we enabled STO so send time was calculated per subscriber based on their historical open patterns.
    • The marketer defined a send window (e.g., next 24 hours), and Einstein picked the optimal time within that window.

  • Behavior-Driven Branching:

    • Opens, clicks, and purchases triggered immediate path changes:

      • No open after X days → softer follow-up, reduced frequency, or re-engagement path
      • Click but no purchase → reminder email with adjacent content or social proof
      • Purchase → shift to post-purchase nurture, cross-sell, or loyalty messaging

  • Validation and Safety Nets

    • Guardrails ensured minimum content diversity (to avoid over-repetition).
    • Fallback rules kicked in if Einstein could not confidently select a content asset, ensuring no broken layouts or empty messages.

End-to-end, a typical flow became: event → Einstein decides what to show and when → journey reacts to behavior in real time → data feeds back into models for the next decision.


5. Created Real-Time Feedback and Learning Loops

Einstein is only as good as the feedback it receives, so we wired in tight loops:

  • Engagement and conversion events were fed back into the same data structures powering Content Selection and STO.
  • Journeys were configured to update subscriber attributes (e.g., “last engaged content type,” “offer sensitivity”) based on what people actually interacted with.
  • We created recurring jobs to refresh aggregates (e.g., engagement scores, purchase recency) so models stayed current.

As a result, Einstein’s decisions became more accurate over time. High-value subscribers who responded to specific categories or formats were automatically prioritized for similar winning elements, while fatigued segments saw reduced frequency or different approaches-without manual list work.


6. Established Governance and Control Around AI-Driven Personalization

To prevent “AI sprawl,” we put governance on top of Einstein rather than letting it grow unchecked:

  • Single source of truth for audience definitions and key attributes, documented and owned by RevOps/marketing ops
  • Clear rules on where humans override Einstein (e.g., compliance-sensitive sends, critical launches) versus where Einstein is the default decision-maker
  • Content catalog standards: every new asset needed proper tagging, eligibility rules, and objectives before being added to Einstein pools
  • Experimentation discipline: A/B tests and controlled rollouts for new Einstein configurations, with rollback plans defined upfront

This governance meant the system stayed predictable and explainable. Teams trusted Einstein’s output because they understood the inputs, the guardrails, and the escalation path when something needed to change.


7. Delivered Unified Reporting and Optimization Dashboards

Finally, we consolidated reporting so leaders and practitioners could see the impact clearly:

  • Dashboards that compared Einstein-powered journeys versus legacy control flows on opens, clicks, and revenue
  • Content performance views that highlighted which assets worked best for which segments, helping creative teams focus on what mattered
  • STO impact reports showing lift in open rates and engagement for AI-optimized sends versus static send times
  • Cohort views tracking how personalized journeys affected re-purchase rates, average order value, and long-term engagement

Leadership could now see not just that metrics improved, but why: which AI decisions, which journeys, and which content patterns were driving the upside.


Outcomes Delivered

The transformation created a smarter, adaptive email engine that continuously learns from behavior, delivers relevant content at the right time, and frees the marketing team from manual, low-leverage work.

  • 40% increase in email open rates driven by Einstein Send Time Optimization and more relevant subject-line/content combinations

  • 20% lift in click-through rates as Einstein Content Selection matched offers and creative to individual interests and past behavior

  • 15% growth in email-driven sales, with higher conversion rates and improved average order value from better-targeted promotions

  • Significant reduction in manual content ops, as the team stopped hand-crafting endless segments and variants and instead curated a high-quality content catalog for Einstein to use

  • Healthier engagement over time, with at-risk subscribers identified early and moved into tailored re-engagement journeys instead of receiving the same bulk campaigns

  • Faster test-and-learn cycles, where insights from Einstein and journey analytics fed directly into creative decisions and campaign design

  • A scalable AI-driven personalization model that can extend beyond email into other channels as the organization matures, using the same data and governance foundation

 You don’t need more sends-just smarter personalization.

 Let’s show you how -->