Which type of rule may require Durable Data?

Durable Data refers to the persistent storage of calculated values that can be reused without recomputation. This is particularly important in scenarios where calculations need to be consistent across sessions or instances of data retrieval.

Custom calculations often involve unique, user-defined expressions that may require results to be stored for efficient retrieval and reuse. When you create a custom calculation, you are likely defining logic that derives metrics or values based on specific business rules or requirements. The nature of custom calculations often necessitates that results must endure beyond a single session of processing, which is where Durable Data becomes essential. It allows users to maintain these calculated results for improved performance and consistency in reporting and analysis, thereby optimizing the overall workflow within the OneStream application.

In contrast, complex expressions, member formulas, and dynamic calculations may not inherently require durable storage as these rules can be recalculated on-the-fly or may operate on a more transient basis, relying less on persistent storage for their outputs. Thus, while each of these types has its own specific use cases and functionality within OneStream, custom calculations most closely align with the need for Durable Data.