What are the different types of Communities User Licenses in Salesforce?

Hi,

Each community license can be either a member-based license or a login-based license, totaling nine different community licenses:

MEMBER-BASED COMMUNITY LICENSES

• Customer Community
• Customer Community Plus
• Partner Community
• Lightning External Apps Plus
• Lightning External Apps Starter

LOGIN-BASED COMMUNITY LICENSES

• Customer Community Login License
• Customer Community Plus Login License
• Partner Community Login License
• Lightning External Apps Plus Login License
• Lightning External Apps Starter Login License

A Community member-based license works like a standard Salesforce internal license: external users with a member-based license are able to access a community as many times as they want. The only difference is that external users do not have access to internal org. Login-based licenses are a bit different.