# Namespace OptimaJet.Workflow.Api.Exceptions

## Classes

-   [AttemptedToSetSystemProcessParameterException](https://api.workflowengine.io/web-api/OptimaJet.Workflow.Api.Exceptions/AttemptedToSetSystemProcessParameterException/)
    
    An exception thrown when there is an attempt to set a system process parameter.
    
-   [DuplicateWorkflowTenantIdException](https://api.workflowengine.io/web-api/OptimaJet.Workflow.Api.Exceptions/DuplicateWorkflowTenantIdException/)
    
    An exception thrown when duplicate workflow tenant IDs are found.
    
-   [HttpContextNotAvailableException](https://api.workflowengine.io/web-api/OptimaJet.Workflow.Api.Exceptions/HttpContextNotAvailableException/)
    
    An exception thrown when HttpContext is not available.
    
-   [IncorrectWorkflowTenantConfigurationException](https://api.workflowengine.io/web-api/OptimaJet.Workflow.Api.Exceptions/IncorrectWorkflowTenantConfigurationException/)
    
    An exception thrown when the workflow tenant configuration is incorrect.
    
-   [InvalidPermissionsClaimException](https://api.workflowengine.io/web-api/OptimaJet.Workflow.Api.Exceptions/InvalidPermissionsClaimException/)
    
    An exception thrown when a permissions claim is invalid.
    
-   [InvalidPermissionsValueException](https://api.workflowengine.io/web-api/OptimaJet.Workflow.Api.Exceptions/InvalidPermissionsValueException/)
    
    An exception thrown when a permissions value is invalid.
    
-   [InvalidTenantIdException](https://api.workflowengine.io/web-api/OptimaJet.Workflow.Api.Exceptions/InvalidTenantIdException/)
    
    An exception thrown when a tenant id has an invalid format.
    
-   [LicenseUnsupportedException](https://api.workflowengine.io/web-api/OptimaJet.Workflow.Api.Exceptions/LicenseUnsupportedException/)
    
    An exception thrown when the license does not support the Workflow Engine API.
    
-   [OperationGroupNotFoundException](https://api.workflowengine.io/web-api/OptimaJet.Workflow.Api.Exceptions/OperationGroupNotFoundException/)
    
    Exception thrown when an operation group cannot be found.
    
-   [PermissionTargetNotFoundException](https://api.workflowengine.io/web-api/OptimaJet.Workflow.Api.Exceptions/PermissionTargetNotFoundException/)
    
    An exception thrown when an permission target permission is not found.
    
-   [ProcessParameterDeserializationException](https://api.workflowengine.io/web-api/OptimaJet.Workflow.Api.Exceptions/ProcessParameterDeserializationException/)
    
    An exception thrown when a process parameter cannot be deserialized to the target type.
    
-   [ProviderFactoryDuplicateProviderIdException](https://api.workflowengine.io/web-api/OptimaJet.Workflow.Api.Exceptions/ProviderFactoryDuplicateProviderIdException/)
    
    An exception thrown when duplicate provider factory persistence provider IDs are found.
    
-   [ProviderFactoryNotFoundException](https://api.workflowengine.io/web-api/OptimaJet.Workflow.Api.Exceptions/ProviderFactoryNotFoundException/)
    
    An exception thrown when a provider factory is not found.
    
-   [SnapshotIsObsoleteException](https://api.workflowengine.io/web-api/OptimaJet.Workflow.Api.Exceptions/SnapshotIsObsoleteException/)
    
    An exception thrown when a tenant snapshot is obsolete and cannot be used.
    
-   [UnableToFindServiceException](https://api.workflowengine.io/web-api/OptimaJet.Workflow.Api.Exceptions/UnableToFindServiceException/)
    
    An exception thrown when a required service is not found.
    
-   [WorkflowDesignerApiException](https://api.workflowengine.io/web-api/OptimaJet.Workflow.Api.Exceptions/WorkflowDesignerApiException/)
    
    An exception thrown when there is an error in the Workflow Designer API.
    
-   [WorkflowTenantIdNotProvidedException](https://api.workflowengine.io/web-api/OptimaJet.Workflow.Api.Exceptions/WorkflowTenantIdNotProvidedException/)
    
    An exception thrown when workflow tenant ID is not provided in the HTTP request and no default tenant is configured.
    
-   [WorkflowTenantNotFoundException](https://api.workflowengine.io/web-api/OptimaJet.Workflow.Api.Exceptions/WorkflowTenantNotFoundException/)
    
    An exception thrown when a workflow tenant is not found.