> ## Documentation Index
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# PFUserCustomIdInfo

> PFUserCustomIdInfo data model.

PFUserCustomIdInfo data model.

## Syntax

```cpp theme={null}
typedef struct PFUserCustomIdInfo {  
    const char* customId;  
} PFUserCustomIdInfo;  
```

### Members

**`customId`**   const char\*\
*is null-terminated*

(Optional) Custom ID.

## Requirements

**Header:** PFTypes.h

## See also

[PFTypes members](https://docs.xbox.com/services/playfab/api-references/c/pftypes/pftypes_members.md)


## Related topics

- [PFUserAccountInfo](https://docs.xbox.com/services/playfab/api-references/c/pftypes/structs/pfuseraccountinfo.md)
- [Services C API overview - PFTypes.h](https://docs.xbox.com/services/playfab/api-references/c/pftypes/pftypes_members.md)
- [PFUserServerCustomIdInfo](https://docs.xbox.com/services/playfab/api-references/c/pftypes/structs/pfuserservercustomidinfo.md)
- [Login With Custom ID](https://docs.xbox.com/services/playfab/api-references/rest/client/authentication/login-with-custom-id.md)
- [Login With Server Custom Id](https://docs.xbox.com/services/playfab/api-references/rest/server/authentication/login-with-server-custom-id.md)