> For the complete documentation index, see [llms.txt](https://fusionauth.io/docs/llms.txt)

# FusionAuth Connector

Learn more about the FusionAuth Connector.

The FusionAuth Connector is the default Connector. This Connector accesses the FusionAuth user datastore to authenticate a user.

It is always present and cannot be deleted. Only the name of this Connector can be modified. It will always have the UUID of `e3306678-a53a-4964-9040-1c96f36dda72`.

This Connector applies to every domain, but can be applied first, last or in any other position, as configured in the Connector policy for a tenant.