Nektar vs Einstein Activity Capture (EAC)
EAC is a window, merely projecting your data onto Salesforce timeline. Nektar writes real, physical records directly into Salesforce. You own the data, you can report on it, and it stays there forever.
Top revenue teams ❤️ Nektar
Trusted by leading B2B revenue teams for Salesforce-ready data, not just call recordings
Features
Activity Capture
Creates the Complete Buyer Relationship
Nektar captures activities, creates missing Contacts, and writes Opportunity Contact Roles in Salesforce, keeping the full buying group connected to the opportunity.
Activity Logging Only
EAC logs the activity but never creates the Contact, and never writes an Opportunity Contact Role. The people on the thread stay missing from the opportunity.
Opportunity Accuracy
Context-Aware Association
Automatically attaches emails and meetings to the specific Opportunity using proprietary matching logic. Uses proprietary relationship inference to handle enterprise complexity (e.g., partners involved, multiple open opps).
Requires existing OCRs
Links to an Opportunity only if a Contact Role (OCR) already exists. Critical Failure in complex sales processes. For eg; if multiple active opportunities exist, EAC stops at the Account level to avoid errors. Can’t handle Email Alias.
Reporting & Analytics
Native, Flexible, and Fully Reportable.
Because data is 100% native, you can build and customise standard reports, dashboards, and BI tools immediately.
Reportable, but not Customisable
After migration, data appears in standard reports. Custom dashboards still need a full CRM Analytics license, and the one bundled with EAC does not cover them.
AI-Native Activity Matching
ML-based affinity
Uses ML-driven affinity scoring to accurately match activity across complex enterprise scenarios with multiple accounts and opportunities.
Rule-based matching
Relies on cascading rule logic that often breaks in multi-opportunity, multi-stakeholder environments.
Data Storage Footprint
Lean Salesforce Footprint
Writes lightweight Task and Event records, with guardrails controlling what gets written to Salesforce in the first place.
Email Storage Adds Up Fast
Writes EmailMessage records, where storage is based on the email body size rather than the standard 2KB per record. Large email histories can significantly increase Salesforce storage consumption.
Custom Objects
Writes to Custom Objects
Activity can be logged against whatever the sales process actually runs on.
Not Supported
Email sync writes to standard objects only.
Deduplication
Prevents duplicates
Intelligently detects and avoids duplicate contacts and activities, keeping CRM data clean and reliable.
Creates duplicates
Often creates duplicate records with limited deduplication controls, leading to messy, fragmented CRM data.
Multi-Threading & Internal Attribution
Tracks all participants
Captures all internal meeting participants (SEs, CSMs, managers) for accurate activity attribution across the team.
Owner-only attribution
Primarily attributes activity to the meeting owner, limiting visibility into broader team engagement.
Email Alias Support
Nektar supports alias and secondary domains out of the box.
Only supports primary domain.
Enrichment
Auto-Enrichment
Automatically adds details like Job Title and Phone Number using your own data to ensure compliance.
Not Available
Does not offer enrichment; all data entry is manual.
Meeting Intelligence
Deep Context
Captures meaningful details: Did they show up? Was it a Demo or Pricing call? Is it held or canceled?
Basic Logging
Tracks that a meeting "exists" on the calendar but lacks intelligence on attendance status, meeting type, or location.
Historical Backfill
Unlimited & Past Employees
Can sync history as far back as you want, including data from employees who have since left the company.
Limited Scope
Only syncs the last 6 months of data, and only for currently active users.
Privacy & Noise Control
Smart Guardrails
Ability to mask confidential subject lines, block OOO replies, and filter out noise (like meeting accepts/declines).
All or Nothing
Lacks granular masking. Often creates clutter by syncing irrelevant calendar noise or failing to protect sensitive internal threads.
Reliability & Support
Reliable Sync
Enterprise grade-reliable sync with dedicated CSM.
Frequent Sync Failures
A Salesforce administrator in April 2026: "It still only works 80% of the time. So many edge cases that occur in the real world that EAC just cant seem to figure out." A cancelled recurring meeting can repeat in Salesforce indefinitely.
User Licensing
Straightforward Per-User Licensing
Priced per user. Activity capture works the same at 50 reps or 500.
Limited to 100 Users
Standard EAC supports up to 100 users. Beyond that, organizations need paid EAC licenses to extend coverage across the team.
Why Switch to Nektar.ai?
The Storage Bill
Migrated email is stored in the org and billed at the size of each message rather than a flat rate per record. One administrator reported a 20GB jump in a single day after Microsoft Graph pulled two years of history for every connected user.
The "Migration Offer"
Switch seamlessly. Nektar backfills up to 12 months of historical activity, accurately linked to the right opportunities in Salesforce—fixing the gaps EAC left behind.
The Timeline Mess
After migration every email reply lands as its own Task. Activity lists fill up fast and cannot be filtered with dynamic lists, so admins end up buying an AppExchange product to clean it up.
The "Zero Change" Management
Drive 100% adoption instantly. Nektar runs invisibly in the background with zero rep behavior change—delivering clean activity capture without workflow disruption.
Why Revenue Teams Are Switching from EAC to Nektar
We realized there were gaps in how activity data was being captured and reported, which made it hard to get full visibility into deal engagement and MEDDIC. Important context around emails, meetings and stakeholders often required manual follow-ups or custom automation. Nektar helped close those gaps by automatically capturing activity with the right context and making it available for reporting and analysis. As a result, our sales leaders now have a clearer view of deal progress, and our operations team spends far less time maintaining workarounds.
Director of Operations, AI Company
Migrated from EAC
Einstein works well for basic activity tracking, but we noticed limitations in accuracy and consistency, especially around meeting capture and opportunity association. This made it difficult to fully trust the data for downstream reporting. With Nektar, we’re able to capture activity with far greater accuracy and work with the data directly inside Salesforce. That gives our teams the flexibility to slice, filter, and analyze engagement in a way that drives more actionable insights and stronger pipeline decisions.
Business Systems Manager, B2B SaaS
Migrated from EAC
Please be aware
Microsoft blocks Exchange Web Services from 1 October 2026 . Tenants can defer to 31 March 2027, and access is permanently removed on 1 April 2027. Tenants that need EWS past October have to set an AppID allowlist before the end of August 2026.
Salesforce migrates EAC orgs that do not migrate themselves, and selects their settings for them.
Frequently Asked Questions
Can Nektar and EAC run simultaneously in the same Salesforce org?
Yes, they can coexist technically, but it’s not recommended for long. Running both creates a data quality problem: After migration EAC writes real Task and EmailMessage records too, so running both produces two sets of real duplicates rather than one real and one display-only. Most teams run both in parallel for a short transition window (typically 2–4 weeks) to validate Nektar’s capture accuracy, then disable EAC once confident. Nektar’s deduplication logic helps prevent double-counting during this overlap period.
Does switching from EAC to Nektar require reps to change how they work?
No. Nektar captures activity automatically in the background by connecting to email and calendar. Reps don’t install anything, change their workflow, or log anything manually. The transition is designed to be invisible to end users, which also means adoption is effectively 100% from day one.
Does Nektar require changes to our existing Salesforce object schema or custom fields?
No custom schema changes are required to get started. Nektar writes to standard Salesforce objects, Tasks and Events, that already exist in every Salesforce org. For teams that want enriched metadata (meeting type, attendance status, etc.), Nektar can populate custom fields you already have or work within your existing data model.
Does EAC affect my Salesforce data storage?
Yes, once you migrate. Captured email becomes EmailMessage records billed at the size of each message rather than a flat rate per record. Administrators have reported large unexpected jumps when Microsoft Graph backfills more history than expected.
Does EAC data work for AI agents and Agentforce?
Migration brings EAC email data into Salesforce, but that doesn’t automatically make your GTM data complete or AI-ready. EAC can log the activity without creating missing Contacts or Opportunity Contact Roles, leaving gaps in who is actually involved in a deal and how they relate to the opportunity.
That matters for AI agents and Agentforce. Agents can only reason and act on the customer context available to them. Nektar captures interactions, creates missing Contacts, maps them to the right opportunities, and writes structured relationship data into Salesforce, giving AI agents a more complete view of every deal.
If we disable EAC, will we lose the activity data it already captured?
It depends on whether your org has migrated to Salesforce’s new EAC storage model. For migrated orgs, previously captured emails are stored in Salesforce rather than EAC’s AWS infrastructure, so disabling EAC does not automatically mean losing that history.
The bigger consideration is what EAC didn’t capture as structured CRM data. Missing Contacts, Opportunity Contact Roles, and incomplete historical activity can still leave gaps in your customer and deal history. Nektar can backfill historical interactions, create missing relationship records, and turn that history into structured, reportable Salesforce data.
Can Nektar backfill the history that EAC deleted or never captured?
Yes. Nektar’s Time Travel feature, backfills up to 18 months of email and calendar history, including data from reps who have since left, writing it to the right accounts, contacts, and opportunities retroactively.
Does Nektar work if reps use the Salesforce mobile app or Salesforce Inbox?
Yes. Because Nektar writes data as native Salesforce records, those activities are visible everywhere Salesforce data surfaces, including the mobile app, Salesforce Inbox, and any third-party tool connected to your Salesforce org. EAC’s projected data, by contrast, often does not render correctly in non-standard Salesforce views or mobile contexts.
Can I delete a captured email with EAC?
No. Users cannot delete emails captured by EAC. EAC also cannot run alongside Lightning Sync.
Is Einstein Activity Capture free?
Standard EAC is included up to 100 users. Above that it becomes a paid add-on. You can check yours in Setup, Company Information, Permission Set Licenses.
Does Nektar affect Salesforce API usage or governor limits?
Nektar is designed to be a responsible API consumer. It batches writes efficiently to minimize API call volume against your Salesforce org. Teams with large user bases or high email volumes should discuss their specific org limits with Nektar’s team during evaluation, but API consumption has not been a blocker for any of Nektar’s enterprise customers.
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