By checking before signing what you recover if you leave. With a proprietary platform, access to methodologies, historical data and detailed exports often depends on the subscription: require a complete export of activity data, a list of the emission factors used with their sources, and a methodological report (scope, assumptions and exclusions) in the contract. An assessment built in ABC’s Bilan Carbone® spreadsheet or a tool whose files you retain remains reusable, since the factors are public and the method documented: your contact or a new provider can take it over without collecting everything again.
Read the source article: Bilan Carbone® software or consultancy: how to choose in 2026