# Mandatory step: data framing

- [Revenue and MRR – ARR framing](/en/avancees/mandatory-step-data-framing/revenue-and-mrr-arr-framing.md): Learn how to compare your internal data (ERP, billing tools) with the indicators calculated by Fincome. Identify and analyze discrepancies to ensure the reliability of your financial reporting
- [Fincome data vs billing data](/en/avancees/mandatory-step-data-framing/fincome-data-vs-billing-data.md): Understand why your Fincome data differs from that in your billing system. Discover common discrepancies and how to adjust them for accurate MRR.
- [Manage calculation options](/en/avancees/mandatory-step-data-framing/manage-calculation-options.md): This guide presents the various configurable options that affect the calculation of MRR, ARR, and related indicators in Settings > Calculation options on Fincome.