Einstein Activity Capture, Salesforce's built-in email and calendar sync tool, works well enough for some teams. But for others, particularly those who care about contact data quality rather than just activity logging, it has limitations that accumulate over time. This page explains what those limitations are, who tends to run into them, and how SigParser compares as an alternative.
This is not a takedown of Einstein Activity Capture. Salesforce built it to solve a specific problem and it does that reasonably well. The question is whether it solves your specific problem, and for teams that need first-party contact enrichment from email history rather than just activity sync, it often does not.
What Einstein Activity Capture Does
Einstein Activity Capture is Salesforce's native email and calendar integration. When enabled, it connects to a user's Outlook or Gmail account and logs emails and calendar events to the relevant Salesforce records automatically. The goal is to give sales representatives a complete activity timeline in Salesforce without requiring them to manually log every email and meeting.
EAC is included in certain Salesforce editions and available as an add-on for others. It supports both Microsoft 365 and Google Workspace and connects through standard OAuth authentication. For teams whose primary need is activity logging, it is a convenient built-in option that avoids the need for a third-party integration.
Where Einstein Activity Capture Falls Short
The limitations of Einstein Activity Capture tend to surface in specific scenarios. If your team runs into any of the following, it is worth evaluating alternatives.
Contact data is not enriched from email signatures
EAC logs that an email was sent and received. It does not extract the contact details from the email signature. Phone numbers, job titles, and company information that appear in every email signature are not captured by EAC and do not populate Salesforce Contact fields. A sales representative who has corresponded with a contact 50 times over two years still has to manually enter that contact's phone number in Salesforce because EAC never extracted it.
For teams where CRM data quality is the primary concern, this is a significant gap. Activity logging without contact enrichment produces a Salesforce database that knows you emailed someone but does not know anything useful about them.
Activity data does not sync retroactively
EAC only syncs activities going forward from when it is enabled. Email and meeting history that existed before EAC was turned on is not captured. For a team that has been using Salesforce for years without EAC, enabling it today does not recover any of that historical relationship context. The activity timeline for every contact starts from the day EAC was switched on.
This is a meaningful limitation for sales teams trying to understand the history of a relationship or for account management teams trying to see when a client was last engaged before EAC was enabled.
Data is not stored in Salesforce's standard objects
One of the more significant technical limitations of EAC is that the activity data it syncs is stored in Salesforce's Einstein Activity Capture objects rather than in standard Task and Event objects. This means EAC activities do not appear in standard Salesforce reports, are not accessible via standard SOQL queries, and are not visible in many third-party tools that integrate with Salesforce through the standard API.
For operations teams that rely on Salesforce reporting, or for organisations that use Salesforce alongside other tools that pull activity data, this creates a situation where EAC data is effectively siloed within Salesforce's own ecosystem and cannot be accessed in the same ways as other Salesforce data.
Limited contact deduplication and matching
EAC attempts to match incoming emails to existing Salesforce Contact and Lead records, but the matching logic has limitations that result in missed matches and duplicate record creation in some scenarios. When a contact emails from a secondary address, or when a contact's name appears differently across records, EAC may log the activity against the wrong record or create a new record rather than updating the existing one.
Performance and reliability issues reported by users
A consistent theme in user reviews of EAC on G2 and Salesforce's own Trailblazer community is intermittent sync failures and performance issues. Emails that should have synced do not appear in Salesforce, requiring manual intervention to resolve. For sales teams that rely on EAC as their primary activity capture mechanism, unreliable sync is a significant operational problem.
How SigParser Compares as an Einstein Activity Capture Alternative
SigParser approaches the email-to-Salesforce problem differently from EAC. Rather than focusing on activity logging, it focuses on contact intelligence: extracting complete, accurate contact records from email history and keeping them current automatically.
The fundamental difference is what each tool considers a successful sync. EAC considers it a success when an email is logged to a Salesforce activity timeline. SigParser considers it a success when a complete, accurate, enriched contact record exists in Salesforce for every person the team has ever corresponded with.
These are different definitions of success, and they produce different outcomes. If your team needs to know that every email was logged to the activity timeline, EAC does that job. If your team needs to know that every contact in Salesforce has a current phone number, job title, and company name derived from actual email correspondence, SigParser does that job.
SigParser extracts complete contact records from your team's email history and syncs them to Salesforce Contact and Lead objects automatically. Free 90-day trial, no credit card required.
Can SigParser and Einstein Activity Capture Be Used Together
Yes. SigParser and EAC are not mutually exclusive. Some teams use EAC for activity timeline logging and SigParser for contact enrichment, treating them as complementary tools that address different parts of the email-to-Salesforce workflow.
In this setup, EAC handles the logging of each email and calendar event to the Salesforce activity timeline. SigParser handles the extraction of contact fields from email signatures and the ongoing enrichment of Contact and Lead records with current information. The CRM benefits from both the activity context that EAC provides and the contact data quality that SigParser provides.
Teams that currently use EAC and are evaluating SigParser typically do so because they are finding that their Salesforce Contact records are incomplete or outdated despite having EAC running, and they want to address the contact data quality problem independently of the activity logging they are already doing.
Learn more about how SigParser enriches Salesforce contacts from email
Who Typically Switches from Einstein Activity Capture to SigParser
The teams most likely to switch from EAC to SigParser or to add SigParser alongside EAC tend to share a few characteristics.
Sales operations and RevOps teams who care about CRM data quality. If the primary complaint about Salesforce data quality is that Contact records are incomplete and the phone number and title fields are blank for most contacts, EAC does not fix that. SigParser does.
Teams with years of pre-EAC email history they want to recover. EAC cannot go back and process the years of email that existed before it was enabled. SigParser's historical scan can, which is particularly valuable for organisations that have been using Salesforce for years but only recently started thinking about systematic contact enrichment.
Operations teams who need contact data in standard Salesforce objects for reporting. If the activity data being logged needs to appear in standard Salesforce reports or be queried via SOQL, EAC's proprietary data storage is a problem. SigParser writes to standard Contact and Lead objects.
Frequently Asked Questions
Is Einstein Activity Capture free?
Einstein Activity Capture is included at no additional cost in Salesforce Sales Cloud Enterprise and Unlimited editions. For Professional edition users, it is available as a paid add-on. The specific pricing and availability depend on your Salesforce contract and edition. SigParser offers a free 90-day trial regardless of which Salesforce edition you use, and its pricing is available on the SigParser pricing page.
Does SigParser replace Einstein Activity Capture?
SigParser and Einstein Activity Capture serve different primary functions. EAC focuses on logging email and calendar activity to Salesforce timelines. SigParser focuses on extracting contact data from email signatures and enriching Salesforce Contact and Lead records. Many teams use both simultaneously. If the primary reason for evaluating an EAC alternative is contact data quality rather than activity logging, SigParser addresses that problem directly.
Can SigParser sync email history that predates when Einstein Activity Capture was enabled?
Yes. This is one of SigParser's key advantages over EAC. When you connect your Outlook or Gmail account to SigParser, it scans your full email history going back to when the account was created, not just from the connection date. This means contact data from years of pre-EAC correspondence is recovered and synced to Salesforce in the initial scan.
Why does Einstein Activity Capture store data in a different place than standard Salesforce objects?
EAC uses its own data storage architecture because it syncs data in near real time from external email providers and needs a different data model to handle the volume and format of that data. The trade-off is that EAC data is not in the standard Salesforce data model, which makes it inaccessible to standard reports, SOQL queries, and many third-party integrations. Salesforce has acknowledged this limitation and has made incremental changes to EAC's data accessibility, but as of 2026 the fundamental architectural constraint remains.
How long does it take to set up SigParser as an Einstein Activity Capture alternative?
Connecting a single Outlook or Gmail account to SigParser takes a few minutes using standard OAuth authentication. The initial scan of email history typically takes a few hours for a typical professional mailbox. Salesforce sync configuration, selecting which fields to map and which records to create or update, is done through the SigParser dashboard and can be completed in under an hour. Most teams have SigParser running and syncing to Salesforce within a business day of starting the trial.
Does SigParser work if we use both Outlook and Gmail in our organization?
Yes. SigParser supports both Microsoft 365 and Gmail accounts and can connect multiple accounts of different types simultaneously. For organisations where some employees use Outlook and others use Gmail, SigParser aggregates contact data from all connected accounts into a single unified contact database and syncs the results to Salesforce.