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# PFAccountManagementClientAddUsernamePasswordAsync

> Adds playfab username/password auth to an existing account created via an anonymous auth method, e.g. automatic device ID login.

Adds playfab username/password auth to an existing account created via an anonymous auth method, e.g. automatic device ID login.

## Syntax

```cpp theme={null}
HRESULT PFAccountManagementClientAddUsernamePasswordAsync(  
    PFEntityHandle entityHandle,  
    const PFAccountManagementAddUsernamePasswordRequest* request,  
    XAsyncBlock* async  
)  
```

### Parameters

**`entityHandle`**   PFEntityHandle

PFEntityHandle to use for authentication.

**`request`**   [PFAccountManagementAddUsernamePasswordRequest\*](https://docs.xbox.com/services/playfab/api-references/c/pfaccountmanagementtypes/structs/pfaccountmanagementaddusernamepasswordrequest.md)

Populated request object.

**`async`**   XAsyncBlock\*\
*Inout*

XAsyncBlock for the async operation.

### Return value

Type: HRESULT

Result code for this API operation.

## Remarks

This API is available on Linux and macOS. See also ClientLoginWithEmailAddressAsync, ClientLoginWithPlayFabAsync. When the asynchronous task is complete, call [PFAccountManagementClientAddUsernamePasswordGetResultSize](https://docs.xbox.com/services/playfab/api-references/c/pfaccountmanagement/functions/pfaccountmanagementclientaddusernamepasswordgetresultsize.md) and [PFAccountManagementClientAddUsernamePasswordGetResult](https://docs.xbox.com/services/playfab/api-references/c/pfaccountmanagement/functions/pfaccountmanagementclientaddusernamepasswordgetresult.md) to get the result.

## Requirements

**Header:** PFAccountManagement.h

## See also

[PFAccountManagement members](https://docs.xbox.com/services/playfab/api-references/c/pfaccountmanagement/pfaccountmanagement_members.md)


## Related topics

- [PFAccountManagementClientAddUsernamePasswordGetResult](https://docs.xbox.com/services/playfab/api-references/c/pfaccountmanagement/functions/pfaccountmanagementclientaddusernamepasswordgetresult.md)
- [Services C API overview - PFAccountManagement.h](https://docs.xbox.com/services/playfab/api-references/c/pfaccountmanagement/pfaccountmanagement_members.md)
- [PFAccountManagementClientAddUsernamePasswordGetResultSize](https://docs.xbox.com/services/playfab/api-references/c/pfaccountmanagement/functions/pfaccountmanagementclientaddusernamepasswordgetresultsize.md)
- [PFAccountManagementAddUsernamePasswordResult](https://docs.xbox.com/services/playfab/api-references/c/pfaccountmanagementtypes/structs/pfaccountmanagementaddusernamepasswordresult.md)
- [PFAccountManagementAddUsernamePasswordRequest](https://docs.xbox.com/services/playfab/api-references/c/pfaccountmanagementtypes/structs/pfaccountmanagementaddusernamepasswordrequest.md)