Which accounts hold pivotal definitions for financial concepts across the board?

The correct answer is Metric Accounts, as they are specifically designed to represent key financial metrics across various dimensions in financial planning and analysis. Metric Accounts hold definitions for financial concepts such as revenue, expenses, or other performance indicators, allowing organizations to derive insights and make informed decisions based on these crucial figures.

Metric Accounts often provide a standardized way to measure and report on financial and operational performance, ensuring consistency in how key financial data is interpreted and analyzed across an organization. These accounts serve as the building blocks for performance measurement and can be used in models and reports to provide a comprehensive view of the financial health of the organization.

Other options, while important in their respective contexts, do not serve the same universal purpose for financial metrics. Default Formulas, for instance, are used to define calculations within the modeling environment but do not themselves hold definitions for financial concepts. GL (General Ledger) Accounts are vital for tracking the financial transactions and maintaining financial records but are more about categorization of transactions than holding financial metric definitions. System Accounts are typically used for administrative or technical settings within the application and do not play a direct role in defining financial concepts in the way that Metric Accounts do.