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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\*](/services/playfab/api-references/c/pfaccountmanagementtypes/structs/pfaccountmanagementaddusernamepasswordrequest)

Populated request object.

**`async`**   XAsyncBlock\*<br />*Inout*

XAsyncBlock for the async operation.

### Return value

Type: HRESULT

Result code for this API operation.

## Remarks

This API is available on Win32, Linux, and macOS. See also ClientLoginWithEmailAddressAsync, ClientLoginWithPlayFabAsync. When the asynchronous task is complete, call [PFAccountManagementClientAddUsernamePasswordGetResultSize](/services/playfab/api-references/c/pfaccountmanagement/functions/pfaccountmanagementclientaddusernamepasswordgetresultsize) and [PFAccountManagementClientAddUsernamePasswordGetResult](/services/playfab/api-references/c/pfaccountmanagement/functions/pfaccountmanagementclientaddusernamepasswordgetresult) to get the result.

## Requirements

**Header:** PFAccountManagement.h

## See also

[PFAccountManagement members](/services/playfab/api-references/c/pfaccountmanagement/pfaccountmanagement_members)


## Related topics

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