Learn why email will not attach to an Opportunity record when using 'Email to Salesforce' or 'Salesforce for Outlook'

Opportunities need to be listed on the Contact record for emails to be associated with them. The Contact needs to be assigned as a Contact Role to have the opportunity listed on their Contact record, unless the Opportunity is created from their record.
 

Add an Opportunity to a Contact

• Go to the contact > Switch to the Related Tab(Next to Details tab)> Click new button on opportunities and add the desired one.
• Or Go to the opportunity> Related tab> Contact roles> Manage contact roles.

There are several things to check when an email is not attaching to an Opportunity record.

1. Check 'My Email to Salesforce' and ensure that the Opportunities checkbox is checked off under 'Email Associations' section. For more please review, Set Up Email to Salesforce

Lightning: Click your avatar | Settings | Email | My Email to Salesforce | 
Classic: Click your name | My Settings | Email | My Email to Salesforce |

2. Check to see if the Contact is the Primary Contact for the Opportunity. 

Note:  When you create an opportunity from a contact detail page, that contact automatically becomes the primary contact on the opportunity. However, a contact role is not automatically assigned.  If you create the Opportunity from the Business Account no Primary Contact will be associated with the Opportunity, even if you add the Contact to the 'Contact Field' field.  You will need to add them to the Contact Roles related list.



See Also:

• Add and Manage Contact Roles​
• How to associate a Contact to an Opportunity
• Add and Manage Contact Roles in Lightning Experience

3. Email to Salesforce only adds emails to Open Opportunities. If the Opportunity is Closed, email will not be added.