Use Sharing Sets with Contacts with Multiple Accounts (Beta)
Where: This change applies to Lightning communities and Salesforce Tabs + Visualforce communities accessed through Lightning Experience and Salesforce Classic. This change applies to Enterprise, Essentials, Performance, Unlimited, and Developer editions.
- Customer Community Login User
- Customer Community Plus and Partner Community Licenses
- Customer Community User
How: In Setup, search for Communities Settings and create a sharing set. Under Configure Access, select Contact.RelatedAccount in the User dropdown list and Account in the Target Object field.