# Class ProcessAlreadyExistsException

OptimaJet.Workflow.Core.Fault.ProcessAlreadyExistsException

Represents an exception thrown when an attempt is made to create or register a process that already exists.

Namespace: [OptimaJet.Workflow.Core.Fault](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Fault/)

```csharp
public class ProcessAlreadyExistsException : Exception, ISerializable
```

## Type Hierarchy

-   [Exception](https://learn.microsoft.com/dotnet/api/system.exception)
    -   ProcessAlreadyExistsException Current type
        -   Implemented interfaces
            -   [ISerializable](https://learn.microsoft.com/dotnet/api/system.runtime.serialization.iserializable)

## Constructors

`public ProcessAlreadyExistsException(Guid id)` 

Initializes a new instance of the [ProcessAlreadyExistsException](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Fault/ProcessAlreadyExistsException/) with a message containing the duplicate process identifier.

### Parameters

| Name | Type | Description |
| --- | --- | --- |
| `id` | `Guid` | The identifier of the process that already exists. |

[Previous PersistenceProviderQueryExceptionExtensions](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Fault/PersistenceProviderQueryExceptionExtensions/) [Next ProcessExecutionException](https://api.workflowengine.io/core/OptimaJet.Workflow.Core.Fault/ProcessExecutionException/)