Can I change the accounting calendar after it's being used in transactions?

Once you set up your accounting calendar and start using it in transactions, you can't change it, like, for example, changing it from calendar year to fiscal year.

You usually create a single accounting calendar as part of your implementation. The accounting calendar defines the time periods used in the applications. When you create the calendar, you specify the exact dates for each period.

These defined periods, often called enterprise periods, are used for many purposes in the applications. Examples include:

• Reports that provide amounts by enterprise period, such as a sales pipeline analysis
• Metrics calculations by period for territory analysis
• The ability to adjust forecast amounts by time period
• Distribution of quota amounts by time period

Thus, after you have transactions created against your accounting calendar, you can't modify it.