# ICustomErrorMessage Interface

Namespace: [Qlik.Sense.Client.Visualizations.Components](https://help.qlik.com/en-US/sense-developer/May2025/Subsystems/NetSDKAPIref/Content/Qlik.Sense.Client.Visualizations.Components.htm)  
Assembly: Qlik.Sense.Client.dll

Defines custom error messages.

## Syntax

```
public interface ICustomErrorMessage : IAbstractStructure
```

## Properties

| Name | Description |
| --- | --- |
| [CalcCond](https://help.qlik.com/en-US/sense-developer/May2025/Subsystems/NetSDKAPIref/Content/Qlik.Sense.Client.Visualizations.Components.ICustomErrorMessage.CalcCond.htm#Qlik_Sense_Client_Visualizations_Components_ICustomErrorMessage_CalcCond) | DEPRECATED: Use qCalcCondition.qMsg instead<br><br>JSON property name: calcCond |