# Required step: data scoping

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


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