Explanation
The order of uploading Salesforce objects during an FSC data migration is important to ensure data integrity and avoid errors. The recommended order is:
Accounts and contacts: These are the core objects that store the basic information about the customers and their relationships. They should be uploaded first to establish the foundation for the FSC data model4.
Financial accounts: These are the custom objects that store the financial information about the customers, such as balances, interest rates, fees, and transactions. They should be uploaded after the accounts and contacts, and linked to them using lookup fields5.
Account groups and households: These are the custom objects that group the accounts and contacts based on common attributes or relationships, such as family members or business partners. They should be uploaded after the financial accounts, and linked to them using junction objects6.
References:
Financial Services Cloud Data Model
Data Migration Best Practices
Accounts and Contacts
Financial Accounts
Account Groups and Households

Explanation
To model a requirement where more than one person can be joint owners on a Financial Account, the Admin can map additional owners using the Financial Account Role. The Financial Account Role is a junction object that links a contact or an individual to a financial account and defines their role or relationship with that account. By using Financial Account Role, the Admin can add multiple owners to a Financial Account and specify their ownership percentage, primary status, and other details.

Explanation
To troubleshoot the issue of Financial Account Balances not adding up to the Financial Summary field in the related Household, the Admin should take the following steps:
Ensure RollUpByLookup Configuration is Active, which is a custom setting that enables or disables the Rollup By Lookup (RBL) feature. RBL is a feature that allows users to aggregate data from financial accounts and display it at the client and group levels1.
Ensure the reported Household is the Primary Group for the member, which is a field on the Account object that indicates whether an account is the primary group for a contact or an individual. The primary group determines which financial summary fields are displayed on the contact or individual page2.
Verified References: 12

Explanation
The Financial Services Cloud feature that is most suitable for tracking clients' hobbies for marketing purposes is Interest Tags. Interest Tags are features that allow users to add tags to contacts or individuals based on their interests or preferences. Users can create custom interest tags or use predefined ones from FSC. By using Interest Tags, the wealth management firm can capture its clients' hobbies and use them for marketing segmentation or personalization.

Explanation
The following things happen when an opportunity record that has opportunity participants with associated share table entries is set to Private:
The share table records are deleted, which means that any sharing access granted by the opportunity participants is revoked.
The opportunity participant records are not deleted, which means that they still exist on the opportunity record and can be viewed by users who have access to the opportunity.