--- schema_version: "1" id: ad9862400ec80f2c64e202c1caa0d960a18b6252038a4ebe050ae0d251f00b49 title: How Events Are Automatically Related to Contacts or Leads collection: admin version: current locale: en-us portal_url: https://docs.salesforce.com/admin/current/en-us/sales/264-0-0/aac_event_sync_auto_relate.md canonical_url: https://help.salesforce.com/s/articleView?id=sales.aac_event_sync_auto_relate.htm&release=264.0.0&type=5 source_site: help.salesforce.com content_type: documentation content_hash: 9e881c6f2e2bd7bafe7bb7321f89379e26191dc8898b00e6444eca8ea6510167 description: Einstein Activity Capture can automatically relate synced Microsoft or Google events to relevant contacts or leads in Salesforce. Learn how that feature works, and how it interacts with other Salesforce options. products: - Sales Cloud - Cross Cloud - Service Cloud Voice release: "264" --- # How Events Are Automatically Related to Contacts or Leads Einstein Activity Capture can automatically relate synced Microsoft or Google events to relevant contacts or leads in Salesforce. Learn how that feature works, and how it interacts with other Salesforce options. ### Required Editions
Available in: Lightning Experience
Available with Einstein Activity Capture Standard in Sales in Starter, Pro Suite, Professional, and Enterprise Editions
Available with Unlimited Edition, Einstein 1 Sales Edition, and Agentforce 1 Edition
Available with Einstein for Sales, which is included in Einstein 1 Sales Edition and available for an extra cost in Enterprise and Unlimited Editions
Available with Sales Engagement, which is included with Sales in Performance and Unlimited Editions, and available for an extra cost in Professional and Enterprise Editions
Available with Revenue Intelligence, which is available for an extra cost in Enterprise and Unlimited Editions
![Note](https://sf-zdocs-cdn-prod.zoominsoftware.com/tdta-sales-sales_productivity-264-0-0-production-enus/b2f6c36a-fa61-4a3c-9752-032ce1818a69/images/icon_note.png) Note We’re reorganizing the Einstein Activity Capture documentation. We’re moving some information around, but we aren’t deleting anything. If your admin selects the **Relate synced events to Salesforce records** option from a configuration’s advanced sync settings, then, when events sync to Salesforce, they’re related to Salesforce records. Events are automatically related only under these conditions. - Sales reps create their events by using Microsoft or Google calendars. - The attendee’s email address matches an email address found on a contact or lead in Salesforce. - The first time the event syncs from your Microsoft or Google calendars to Salesforce. After the first time the event syncs to Salesforce, subsequent matching contacts or leads invited to the event aren’t automatically related. Likewise, when a user removes an attendee from an event, the attendee’s name is removed from the Attendees field, but the matching related records aren’t automatically removed from the event. But you can remove or replace the related record manually. - If Salesforce [sharing rules](https://help.salesforce.com/articleView?id=platform.security_about_sharing_rules.htm&type=5&language=en_US) permit the event organizer to see the matching contacts or leads in Salesforce. (Or in record-level access terms, only View access to the matching records is needed.) For events with an organizer and multiple attendees, you can’t always predict which specific attendee or attendees “wins” as the related record or records. Which records are related depend on these two factors. - Whether your admin has turned on [shared activities](https://help.salesforce.com/articleView?id=activities_enable_shared_activities.htm&language=en_US) (the Allow Users to Relate Multiple Contacts to Tasks and Events option on the Activity Settings page in Setup) - The kinds of records (users, contacts, or leads) you have in Salesforce that include email addresses that match the attendees’ email addresses. ## Matching Attendees with Records when Shared Activities Is Off When shared activities is off, Einstein Activity Capture can relate only one Salesforce contact or lead to your event. - For events with an organizer and only one attendee, Einstein Activity Capture searches for a contact or lead that matches that single attendee and relates it to the event. - For events with more attendees, Einstein Activity Capture evaluates attendees for matches in a random order. Because only one related record is supported, the record that “wins” depends on the random order attendees are evaluated and the matching contact or lead you have in Salesforce. Sometimes Einstein Activity Capture finds multiple Salesforce records that match a single attendee’s email address. In that case, here’s how records are related when shared activities is off.
If the attendee’s email address matches these Salesforce records ...Salesforce adds this record to the Attendee field … and Einstein Activity Capture automatically relates this record to the event.
A contact and a lead The contact The contact

A Salesforce user and either or both:

  • A contact
  • A lead
 The Salesforce user The contact. If no matching contact is found, the lead.
## Matching Attendees with Records when Shared Activities Is On When shared activities is on, Einstein Activity Capture can relate up to 50 matching contacts or one matching lead to your event. - For events with an organizer and only one attendee, Einstein Activity Capture searches for a contact or lead that matches that single attendee and relates it to the event. - For events with more attendees, Einstein Activity Capture first searches all attendees for matching Salesforce contacts and relates the first 50 that are located. If no matching contacts are found, Einstein Activity Capture searches all attendees for a matching Salesforce lead and relates the first one that’s located. Sometimes Einstein Activity Capture finds multiple Salesforce records that match a single attendee’s email address. In that case, here’s how records are related when shared activities is on.
If the attendee’s email address matches these Salesforce records ...Salesforce adds this record to the Attendee field … and Einstein Activity Capture automatically relates this record to the event.
A contact and a lead The contact The contact

A Salesforce user and either or both:

  • A contact
  • A lead
 The Salesforce user If a contact or lead has the same email address as a Salesforce user, and that user has already been added to the Attendees field, Einstein Activity Capture doesn’t relate the matching contact or lead to the event. Instead, Einstein Activity Capture evaluates the rest of the event attendees, looking for up to 50 matching contacts, and relate them. If no contacts are found, Einstein Activity Capture evaluates the rest of the event attendees, looking for one matching lead, and relates it.
## What to Expect When No Matching Contact or Lead Is Found If no contacts or leads match your event attendee’s email address, synced events are added to the Unresolved Items list in your Personal Settings in Salesforce. From there, you can choose which Salesforce contacts or leads to relate. Or you can remove the event from the list and opt not to relate a record. If no matching contact or lead is found, the invitee’s email address is saved in Salesforce. It appears in the event record details, and can only be removed if a user removes the email address directly from the event in the connected calendar. #### See Also - [Events and Einstein Activity Capture](https://help.salesforce.com/s/articleView?id=sales.aac_guidelines_sync.htm&release=264.0.0&type=5 "Discover how Einstein Activity Capture handles your event data after it’s captured.")