1# UDMF Error Codes 2 3> **NOTE** 4> 5> This topic describes only module-specific error codes. For details about universal error codes, see [Universal Error Codes](../errorcode-universal.md). 6 7## 20400001 Settings Already Exist 8 9**Error Message** 10 11Settings already exist. To reconfigure, remove the existing sharing options. 12 13**Description** 14 15The data to be set by **setAppShareOptions()** already exists. 16 17**Possible Causes** 18 19This error is reported when [setAppShareOptions](js-apis-data-unifiedDataChannel.md#unifieddatachannelsetappshareoptions14) is called repeatedly to set **ShareOptions** of the drag-and-drop channel data. 20 21**Solution** 22 23Call [removeAppShareOptions](js-apis-data-unifiedDataChannel.md#unifieddatachannelremoveappshareoptions14) to clear the **ShareOptions** of the current drag-and-drop channel data, and then call [setAppShareOptions](js-apis-data-unifiedDataChannel.md#unifieddatachannelsetappshareoptions14) to set **ShareOptions**. 24