Contact roles let you specify the part that a person plays in an account, case, contract, or opportunity.
Resource:
Considerations for Using Contact Roles - https://help.salesforce.com/articleView?id=sf.contactroles.htm&type=5
In this lesson, we create a Big Deal alert.
We briefly look at some final Opportunity related items found in the Setup Menu, such as Opportunity Settings, Opportunity Splits and we revisit Opportunity Team Settings.
In this lesson, we switch to Classic to look at a Classic only option - Similar Opportunities.
Resource:
Enable and Configure Similar Opportunities - https://help.salesforce.com/articleView?id=sf.customize_oppsimilaropp.htm&type=5