> For the complete documentation index, see [llms.txt](https://docs.sentiance.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.sentiance.com/sdk/api-reference/android/userlinkingerror/userlinkingfailurereason.md).

# UserLinkingFailureReason

Represents the failure reason.

| **NO\_USER**                   | No user present on the device. Call [`Sentiance#createUser(UserCreationOptions)`](/sdk/api-reference/android/sentiance.md#createuser) to create a user.                                    |
| ------------------------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| **USER\_ALREADY\_LINKED**      | The user is already linked.                                                                                                                                                                |
| **NETWORK\_ERROR**             | A network error occurred.                                                                                                                                                                  |
| **SERVER\_ERROR**              | A server error occurred.                                                                                                                                                                   |
| **USER\_DISABLED\_REMOTELY**   | The user is disabled remotely.                                                                                                                                                             |
| **UNEXPECTED\_ERROR**          | An unexpected error occurred. Check the corresponding [UserLinkingError`#getDetails()`](/sdk/api-reference/android/userlinkingerror.md) for more info.                                     |
| **APP\_SIDE\_LINKING\_FAILED** | The application failed to complete the user linking step. See [`UserLinker`](/sdk/api-reference/android/userlinker.md), [`UserLinkerAsync`](/sdk/api-reference/android/userlinkerasync.md) |