Which options need to be configured to set up weekly planning for a continuous 18 months?

The correct choice focuses on Weekly Planning, which is essential for establishing a framework that operates on a weekly basis rather than a monthly one. Setting up weekly planning implies that the system will capture data and support processes at a granularity that allows for more frequent monitoring and forecasting over the specified continuous period.

By configuring Weekly Planning, organizations can perform detailed analyses, track performance, and incorporate updated data on a weekly basis, which ultimately helps in making timely strategic decisions. This is particularly useful in environments where conditions change rapidly, and being able to adjust plans weekly can provide a competitive advantage.

While the other options involve important elements of the overall planning architecture, they do not themselves directly enable the weekly planning functionality. For instance, mapping weeks to months is necessary for how the data will be interpreted over a longer time frame, but it does not achieve the objective of setting up the planning process itself. Similarly, rolling forecasts and plan element dimensions play significant roles in planning scenarios but lack the direct focus on the weekly frequency required for this specific planning setup.