When is this a problem?
This is a problem in models where the time requirements of the module differ from the Model Calendar. This could mean that the year requirements are outside of the model calendar or do not need all of the years in the model calendar. It is also a problem to include unnecessary time summary settings.
Why is this a problem?
The model quickly becomes very large.
How to correct:
Identify the requirements and build a proper time range to account for this. Remember: Time ranges will not dynamically update when you adjust your current fiscal year. Be sure and have an end-of-year process to update your time ranges.
Introduction to Time Ranges
Questions on this topic? See What time dimensions are being used in the module? Can a Time Range be used? in our Model Optimization Checklist forum.