An extended user license is used for business partners and alt accounts.

There are cases where there are multiple designers and builders with in a single store, company or shop.

A Extended user license allows those people to share Full Perm Items between each other for use of creating and selling in their shop under both names.

Example.. Jane doe and John Doe run a store together… Jane doe buys a sword.. and passes it to John Doe to sell it.

This would normally be a breach in the Underground TOS. But with the purchase of a Extended User License.. this will become legal.

All user licenses between 2 people is 10,000 Lindens.

Licenses are not reversible. Meaning.. if you agree to a license with someone, it remains…. forever.

You can only have 3 licenses with other accounts.