How do I give a contact access to multiple customer portals?

To give a contact access to multiple customer portals within different business units or accounts, you'll need to use email aliases with plus addressing. Here's how:

1. Add the person as a contact on each account where they need access

2. Use a unique plus address for each account (e.g., bob+account1@domain.com, bob+account2@domain.com)

3. Assign appropriate portal roles for each contact (such as admin for organization-wide ticket visibility)

Note: Currently, there is no built-in organization picker to switch between different account portals in a single view. Each account's portal must be accessed separately using the specific email address created for that account.