Remember that the Role Hierarchy opens up access vertically. With Sharing Rules you can open up access laterally.
In this lesson, we find that Manual Sharing is not currently available in Lightning Experience, thanks to the Lightning Roadmap. We switch to Salesforce Classic and create a Sharing Rule on the Opportunity.
We set the criteria for the Opportunity Sharing Rule so that whenever an opportunity has...
In this lesson, we set Field Level Security on fields.
In this lesson, we create a Public Group. I also demonstrate a few areas you may find Public Groups being used, such as when creating Sharing Rules and also when manually sharing records.