# Users

You can use the Users operations only if you have the Multi-entity feature enabled.
For detailed information about the Multi-entity feature, see Multi-entity.

 - [PUT /v1/users/{username}/request-access](https://developer.zuora.com/v1-api-reference/older-api/users/put_senduseraccessrequests.md): Sends access requests to the entities that a user wants to access. ### User Access Permission You must make the call as an administrator of the entity, in which the request user is created. Also, this
 - [PUT /v1/users/{username}/accept-access](https://developer.zuora.com/v1-api-reference/older-api/users/put_acceptuseraccess.md): Accepts user access to an entity. ### User Access Permission You must make the calls as an administrator of the entity that you want to accept the user access to.
 - [PUT /v1/users/{username}/deny-access](https://developer.zuora.com/v1-api-reference/older-api/users/put_denyuseraccess.md): Denies a user access to an entity. ### User Access Permission You must make the calls as an administrator of the entity that you want to deny the user access to.
 - [GET /v1/users/{username}/accessible-entities](https://developer.zuora.com/v1-api-reference/older-api/users/get_entitiesuseraccessible.md): Retrieves detailed information about all the entities that a user has permission to access. ### User Access Permission You can make the call as any entity user.