# Class SnapshotIsObsoleteException OptimaJet.Workflow.Api.Exceptions.SnapshotIsObsoleteException An exception thrown when a tenant snapshot is obsolete and cannot be used. Namespace: [OptimaJet.Workflow.Api.Exceptions](https://api.workflowengine.io/web-api/OptimaJet.Workflow.Api.Exceptions/) ```csharp public class SnapshotIsObsoleteException : InvalidOperationException, ISerializable ``` ## Type Hierarchy - [Exception](https://learn.microsoft.com/dotnet/api/system.exception) - [SystemException](https://learn.microsoft.com/dotnet/api/system.systemexception) - [InvalidOperationException](https://learn.microsoft.com/dotnet/api/system.invalidoperationexception) - SnapshotIsObsoleteException Current type - Implemented interfaces - [ISerializable](https://learn.microsoft.com/dotnet/api/system.runtime.serialization.iserializable) ## Constructors `public SnapshotIsObsoleteException()` An exception thrown when a tenant snapshot is obsolete and cannot be used. [Previous ProviderFactoryNotFoundException](https://api.workflowengine.io/web-api/OptimaJet.Workflow.Api.Exceptions/ProviderFactoryNotFoundException/) [Next UnableToFindServiceException](https://api.workflowengine.io/web-api/OptimaJet.Workflow.Api.Exceptions/UnableToFindServiceException/)