# StreamDeliveryFailureEntity.PartitionKey

[Type overview](/orleans/docs/api/csharp/microsoft.orleans.streaming.azurestorage/orleans.providers.streams.persistentstreams.streamdeliveryfailureentity/) | [Properties](/orleans/docs/api/csharp/microsoft.orleans.streaming.azurestorage/orleans.providers.streams.persistentstreams.streamdeliveryfailureentity/properties/)

[Source](https://github.com/dotnet/orleans/blob/e4e752cedecc2976811db49802c7a999b1f1c704/src/Azure/Orleans.Streaming.AzureStorage/Providers/Streams/PersistentStreams/StreamDeliveryFailureEntity.cs)

```csharp
public string PartitionKey
```

The partition key is a unique identifier for the partition within a given table and forms the first part of an entity's primary key.

### Value

A string containing the partition key for the entity.