What is one requirement for scheduling a data change task?

The requirement that the source can be an sFTP, Amazon S3, or REST API is correct because these data sources are commonly utilized in Workday Prism Analytics for scheduling data change tasks. These platforms provide a reliable way to transfer and manage data, allowing for integration and regular updates to the datasets used within Workday.

Using options like sFTP enables secure and efficient file transfers, while Amazon S3 offers scalable storage solutions for data integration. REST APIs are designed to work seamlessly with various applications and data services, making them ideal for real-time data access and manipulation. This flexibility in sourcing data is essential as it accommodates a variety of technological environments and use cases within Workday Prism's framework.

The other choices pertain to aspects that are not inherently required for scheduling data change tasks. For example, having unlimited active schedules is impractical and does not reflect any limitation or capability in data handling; the requirement for a custom SQL database is unnecessarily restrictive since Workday Prism supports diverse data sources; and the specification of scheduling a task at midnight can be a preference but is not a requirement for task scheduling.