Before you start
Things you need to know:
- Only account owners, admin users, and users with the Can manage account permission can purchase upgrades and add-ons for an account. 
Learn more in Restrict and grant user access permissions
Access account upgrades and add-ons
To access account upgrades and add-ons:
- Expand the User menu in the bottom left and select Settings. 
- Go to Billing > Upgrades and add-ons. 
- Use the left side menu to view upgrades and add-ons for a particular section of your account. Alternatively, select All to view all upgrades and add-ons available. 
Available account upgrades and add-ons
Account upgrades and add-ons available for purchase:
Accounts
- Child accounts 
 Add a new account to your main account.
Branded domains and aliases
- Aliases 
 Add a custom email sending alias to your account.
- Branded domains 
 Add a branded domain to your account.
- Domain name renewal 
 Renew your branded domains.
Chat
- Chat agents 
 Purchase additional chat agents for your account.
SMS
- SMS number 
 Add a new SMS number to your account.
- Premium messaging top-up 
 Add funds to your premium messaging wallet.
Inbox previews
- Inbox preview 
 Purchase an inbox and spam filter test for a campaign.

