OpenIntegrations/docs/en/md/TCP/Client-methods/Get-last-error.mdx

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# Get last error 
 Gets information about the last error in the connection



`Function GetLastError(Val Connection) Export`

  | Parameter | CLI option | Type | Required | Description |
  |-|-|-|-|-|
  | Connection | - | Arbitrary | ✔ | Connection, see. CreateConnection |

  
  Returns:  Map Of KeyAndValue, Undefined - Error information or undefined if there is no error

<br/>


:::caution
**NOCLI:** this method is not available in CLI version
:::
<br/>



```bsl title="1C:Enterprise/OneScript code example"
    Address    = "45.79.112.203:4242";
    Connection = OPI_TCP.CreateConnection(Address);
    Data       = "Hello server!" + Chars.LF;

    Sending = OPI_TCP.SendLine(Connection, Data);
```
 



```json title="Result"
null
```