Following best practices for Blue Prism development, it is essential to keep validation logic separate from the core business process to enhance maintainability and clarity. This approach ensures that validation is modular and can be easily updated or reused.

Process Studio, a separate page within the process containing validation logic (Option B): This is the best practice for implementing validation logic. By creating a separate page within the Process Studio, the validation logic remains organized and distinct from other parts of the process. This approach allows for easy updates and debugging.

The other options are less ideal for the following reasons:

Object Studio a business object dedicated to validating the form (Option A): While this is a valid approach, it is generally better to keep validation within the process logic rather than creating a separate object solely for validation.

Process Studio: an action on the main page calling a Business Object's Validation page (Option C): This complicates the process unnecessarily by involving an additional business object.

Object Studio a separate page within the create request object containing validation logic (Option D): Keeping validation within the Object Studio ties it too closely to the specific object, making it less flexible and reusable.

ReferencesRefer to Blue Prism's best practices documentation on process design, which emphasizes modularity and separation of concerns.